55047468531 has 16 divisors (see below), whose sum is σ = 83550309120. Its totient is φ = 31911575520.

The previous prime is 55047468527. The next prime is 55047468547. The reversal of 55047468531 is 13586474055.

It is not a de Polignac number, because 55047468531 - 2² = 55047468527 is a prime.

It is a super-2 number, since 2×55047468531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55047468331) 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, 36262396 + ... + 36263913.

It is an arithmetic number, because the mean of its divisors is an integer number (5221894320).

Almost surely, 2^55047468531 is an apocalyptic number.

55047468531 is a deficient number, since it is larger than the sum of its proper divisors (28502840589).

55047468531 is a wasteful number, since it uses less digits than its factorization.

55047468531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72526346.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 55047468531 in words is "fifty-five billion, forty-seven million, four hundred sixty-eight thousand, five hundred thirty-one".