54131512 has 24 divisors (see below), whose sum is σ = 106109640. Its totient is φ = 25886960.

The previous prime is 54131509. The next prime is 54131531. The reversal of 54131512 is 21513145.

It is a happy number.

It is a super-2 number, since 2×54131512² = 5860441182812288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2164 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (4421235).

Almost surely, 2^54131512 is an apocalyptic number.

It is an amenable number.

54131512 is a deficient number, since it is larger than the sum of its proper divisors (51978128).

54131512 is a wasteful number, since it uses less digits than its factorization.

54131512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12843 (or 12816 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 54131512 is about 7357.4120450060. The cubic root of 54131512 is about 378.2829083155.

Adding to 54131512 its reverse (21513145), we get a palindrome (75644657).

The spelling of 54131512 in words is "fifty-four million, one hundred thirty-one thousand, five hundred twelve".