55640632113 has 24 divisors (see below), whose sum is σ = 87854790816. Its totient is φ = 33652886400.

The previous prime is 55640632109. The next prime is 55640632141. The reversal of 55640632113 is 31123604655.

55640632113 is a `hidden beast` number, since 5 + 5 + 6 + 4 + 0 + 632 + 1 + 13 = 666.

55640632113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55640632113 - 2² = 55640632109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55640632163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 523720 + ... + 620937.

It is an arithmetic number, because the mean of its divisors is an integer number (3660616284).

Almost surely, 2^55640632113 is an apocalyptic number.

It is an amenable number.

55640632113 is a deficient number, since it is larger than the sum of its proper divisors (32214158703).

55640632113 is a wasteful number, since it uses less digits than its factorization.

55640632113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145165 (or 1145162 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 55640632113 in words is "fifty-five billion, six hundred forty million, six hundred thirty-two thousand, one hundred thirteen".