55649693157 has 16 divisors (see below), whose sum is σ = 76211808960. Its totient is φ = 36093866112.

The previous prime is 55649693153. The next prime is 55649693167. The reversal of 55649693157 is 75139694655.

It is not a de Polignac number, because 55649693157 - 2² = 55649693153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55649693157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55649693153) 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, 2304894 + ... + 2328912.

It is an arithmetic number, because the mean of its divisors is an integer number (4763238060).

Almost surely, 2^55649693157 is an apocalyptic number.

It is an amenable number.

55649693157 is a deficient number, since it is larger than the sum of its proper divisors (20562115803).

55649693157 is a wasteful number, since it uses less digits than its factorization.

55649693157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44932.

The product of its digits is 30618000, while the sum is 60.

The spelling of 55649693157 in words is "fifty-five billion, six hundred forty-nine million, six hundred ninety-three thousand, one hundred fifty-seven".