55597811136 has 112 divisors (see below), whose sum is σ = 172027071744. Its totient is φ = 15515652096.

The previous prime is 55597811131. The next prime is 55597811161. The reversal of 55597811136 is 63111879555.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×55597811136² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55597811131) 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 15 ways as a sum of consecutive naturals, for example, 423225 + ... + 538808.

Almost surely, 2^55597811136 is an apocalyptic number.

55597811136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55597811136 is an abundant number, since it is smaller than the sum of its proper divisors (116429260608).

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

55597811136 is a wasteful number, since it uses less digits than its factorization.

55597811136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962098 (or 962088 counting only the distinct ones).

The product of its digits is 1134000, while the sum is 51.

The spelling of 55597811136 in words is "fifty-five billion, five hundred ninety-seven million, eight hundred eleven thousand, one hundred thirty-six".