55238976651 has 16 divisors (see below), whose sum is σ = 77717767680. Its totient is φ = 34829065920.

The previous prime is 55238976643. The next prime is 55238976691. The reversal of 55238976651 is 15667983255.

It is not a de Polignac number, because 55238976651 - 2³ = 55238976643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55238976591 and 55238976600.

It is not an unprimeable number, because it can be changed into a prime (55238976691) 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, 4491415 + ... + 4503696.

It is an arithmetic number, because the mean of its divisors is an integer number (4857360480).

Almost surely, 2^55238976651 is an apocalyptic number.

55238976651 is a deficient number, since it is larger than the sum of its proper divisors (22478791029).

55238976651 is a wasteful number, since it uses less digits than its factorization.

55238976651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8995226.

The product of its digits is 13608000, while the sum is 57.

The spelling of 55238976651 in words is "fifty-five billion, two hundred thirty-eight million, nine hundred seventy-six thousand, six hundred fifty-one".