55788662537 has 4 divisors (see below), whose sum is σ = 55968047616. Its totient is φ = 55609277460.

The previous prime is 55788662441. The next prime is 55788662593. The reversal of 55788662537 is 73526688755.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55788662537 is a prime.

It is a super-2 number, since 2×55788662537² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55788662537.

It is not an unprimeable number, because it can be changed into a prime (55788662597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89692073 + ... + 89692694.

It is an arithmetic number, because the mean of its divisors is an integer number (13992011904).

Almost surely, 2^55788662537 is an apocalyptic number.

It is an amenable number.

55788662537 is a deficient number, since it is larger than the sum of its proper divisors (179385079).

55788662537 is a wasteful number, since it uses less digits than its factorization.

55788662537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179385078.

The product of its digits is 84672000, while the sum is 62.

The spelling of 55788662537 in words is "fifty-five billion, seven hundred eighty-eight million, six hundred sixty-two thousand, five hundred thirty-seven".