55653939913 has 16 divisors (see below), whose sum is σ = 65392500096. Its totient is φ = 46696285440.

The previous prime is 55653939881. The next prime is 55653939961. The reversal of 55653939913 is 31993935655.

It is a cyclic number.

It is not a de Polignac number, because 55653939913 - 2⁵ = 55653939881 is a prime.

It is a super-2 number, since 2×55653939913² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55653939113) 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, 1248945 + ... + 1292737.

It is an arithmetic number, because the mean of its divisors is an integer number (4087031256).

Almost surely, 2^55653939913 is an apocalyptic number.

It is an amenable number.

55653939913 is a deficient number, since it is larger than the sum of its proper divisors (9738560183).

55653939913 is a wasteful number, since it uses less digits than its factorization.

55653939913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52704.

The product of its digits is 14762250, while the sum is 58.

The spelling of 55653939913 in words is "fifty-five billion, six hundred fifty-three million, nine hundred thirty-nine thousand, nine hundred thirteen".