54164572731 has 12 divisors (see below), whose sum is σ = 78492566152. Its totient is φ = 35992092096.

The previous prime is 54164572703. The next prime is 54164572769. The reversal of 54164572731 is 13727546145.

54164572731 is a `hidden beast` number, since 5 + 4 + 1 + 6 + 4 + 572 + 73 + 1 = 666.

It is not a de Polignac number, because 54164572731 - 2⁷ = 54164572603 is a prime.

It is a super-2 number, since 2×54164572731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54164572771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9799006 + ... + 9804531.

Almost surely, 2^54164572731 is an apocalyptic number.

54164572731 is a deficient number, since it is larger than the sum of its proper divisors (24327993421).

54164572731 is a wasteful number, since it uses less digits than its factorization.

54164572731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19603850 (or 19603847 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The spelling of 54164572731 in words is "fifty-four billion, one hundred sixty-four million, five hundred seventy-two thousand, seven hundred thirty-one".