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55056050561 = 3110311722601
BaseRepresentation
bin110011010001100110…
…001010100110000001
312021002221200011002202
4303101212022212001
51400223322104221
641143054122545
73656224464641
oct632146124601
9167087604082
1055056050561
1121392783736
12a8061b0455
1352653c4a15
142944022521
1516736bdd0b
hexcd198a981

55056050561 has 8 divisors (see below), whose sum is σ = 56887208448. Its totient is φ = 53228340000.

The previous prime is 55056050513. The next prime is 55056050573. The reversal of 55056050561 is 16505065055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55056050561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55056050461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829340 + ... + 893261.

It is an arithmetic number, because the mean of its divisors is an integer number (7110901056).

Almost surely, 255056050561 is an apocalyptic number.

It is an amenable number.

55056050561 is a deficient number, since it is larger than the sum of its proper divisors (1831157887).

55056050561 is a wasteful number, since it uses less digits than its factorization.

55056050561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723663.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 55056050561 in words is "fifty-five billion, fifty-six million, fifty thousand, five hundred sixty-one".

Divisors: 1 31 1031 31961 1722601 53400631 1776001631 55056050561