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55250275253 = 69179956983
BaseRepresentation
bin110011011101001011…
…000100101110110101
312021121111010210021212
4303131023010232311
51401123032302003
641214233051205
73664103406455
oct633513045665
9167544123255
1055250275253
1121482381608
12a85b256b05
135296709384
142961b3dd65
151685786dd8
hexcdd2c4bb5

55250275253 has 4 divisors (see below), whose sum is σ = 55330232928. Its totient is φ = 55170317580.

The previous prime is 55250275243. The next prime is 55250275277. The reversal of 55250275253 is 35257205255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55250275253 - 28 = 55250274997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55250275253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250275243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39977801 + ... + 39979182.

It is an arithmetic number, because the mean of its divisors is an integer number (13832558232).

Almost surely, 255250275253 is an apocalyptic number.

It is an amenable number.

55250275253 is a deficient number, since it is larger than the sum of its proper divisors (79957675).

55250275253 is an equidigital number, since it uses as much as digits as its factorization.

55250275253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79957674.

The product of its (nonzero) digits is 525000, while the sum is 41.

The spelling of 55250275253 in words is "fifty-five billion, two hundred fifty million, two hundred seventy-five thousand, two hundred fifty-three".

Divisors: 1 691 79956983 55250275253