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55250283 = 3117123581
BaseRepresentation
bin1101001011000…
…0110101101011
310211222000010210
43102300311223
5103121002113
65252112203
71240422354
oct322606553
9124860123
1055250283
11292073a0
1216605663
13b5a609a
1474a2d2b
154cb56c3
hex34b0d6b

55250283 has 16 divisors (see below), whose sum is σ = 81499392. Its totient is φ = 33012000.

The previous prime is 55250281. The next prime is 55250291. The reversal of 55250283 is 38205255.

It is not a de Polignac number, because 55250283 - 21 = 55250281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55250283.

It is not an unprimeable number, because it can be changed into a prime (55250281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9448 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (5093712).

Almost surely, 255250283 is an apocalyptic number.

55250283 is a deficient number, since it is larger than the sum of its proper divisors (26249109).

55250283 is a wasteful number, since it uses less digits than its factorization.

55250283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23666.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 55250283 is about 7433.0534102749. The cubic root of 55250283 is about 380.8712304484.

The spelling of 55250283 in words is "fifty-five million, two hundred fifty thousand, two hundred eighty-three".

Divisors: 1 3 11 33 71 213 781 2343 23581 70743 259391 778173 1674251 5022753 18416761 55250283