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55225503161 = 431297398999
BaseRepresentation
bin110011011011101100…
…100100110110111001
312021112202112020100222
4303123230210312321
51401100212100121
641211550105425
73663353013563
oct633354446671
9167482466328
1055225503161
112146a3a1a04
12a852aab275
135291544b2a
14295c732333
1516834e20ab
hexcdbb24db9

55225503161 has 8 divisors (see below), whose sum is σ = 56514744000. Its totient is φ = 53936486352.

The previous prime is 55225503127. The next prime is 55225503197. The reversal of 55225503161 is 16130552255.

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

It is a cyclic number.

It is not a de Polignac number, because 55225503161 - 230 = 54151761337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55225503101) 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, 508340 + ... + 607338.

It is an arithmetic number, because the mean of its divisors is an integer number (7064343000).

Almost surely, 255225503161 is an apocalyptic number.

It is an amenable number.

55225503161 is a deficient number, since it is larger than the sum of its proper divisors (1289240839).

55225503161 is a wasteful number, since it uses less digits than its factorization.

55225503161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112015.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 55225503161 in words is "fifty-five billion, two hundred twenty-five million, five hundred three thousand, one hundred sixty-one".

Divisors: 1 43 12973 98999 557839 4256957 1284314027 55225503161