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2550550027780 = 225127527501389
BaseRepresentation
bin100101000111011000101…
…000001101111000000100
3100000211102012212001002201
4211013120220031320010
5313242011301342110
65231412334444244
7352162002345616
oct45073050157004
910024365761081
102550550027780
118a3755aa8347
12352392063684
131566923a1b91
148b63949cdb6
154652b901b3a
hex251d8a0de04

2550550027780 has 12 divisors (see below), whose sum is σ = 5356155058380. Its totient is φ = 1020220011104.

The previous prime is 2550550027777. The next prime is 2550550027789. The reversal of 2550550027780 is 877200550552.

It can be written as a sum of positive squares in 2 ways, for example, as 895972047364 + 1654577980416 = 946558^2 + 1286304^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2550550027780.

It is not an unprimeable number, because it can be changed into a prime (2550550027789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63763750675 + ... + 63763750714.

It is an arithmetic number, because the mean of its divisors is an integer number (446346254865).

Almost surely, 22550550027780 is an apocalyptic number.

2550550027780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550550027780 is an abundant number, since it is smaller than the sum of its proper divisors (2805605030600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2550550027780 is a wasteful number, since it uses less digits than its factorization.

2550550027780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127527501398 (or 127527501396 counting only the distinct ones).

The product of its (nonzero) digits is 980000, while the sum is 46.

The spelling of 2550550027780 in words is "two trillion, five hundred fifty billion, five hundred fifty million, twenty-seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 127527501389 255055002778 510110005556 637637506945 1275275013890 2550550027780