54031531 has 6 divisors (see below), whose sum is σ = 56483420. Its totient is φ = 51681828.

The previous prime is 54031519. The next prime is 54031541. The reversal of 54031531 is 13513045.

It is a happy number.

It is not a de Polignac number, because 54031531 - 2¹⁷ = 53900459 is a prime.

It is a super-2 number, since 2×54031531² = 5838812684407922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54031511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50541 + ... + 51598.

Almost surely, 2^54031531 is an apocalyptic number.

54031531 is a deficient number, since it is larger than the sum of its proper divisors (2451889).

54031531 is a wasteful number, since it uses less digits than its factorization.

54031531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102185 (or 102162 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 54031531 is about 7350.6143280681. The cubic root of 54031531 is about 378.0498683776.

Adding to 54031531 its reverse (13513045), we get a palindrome (67544576).

The spelling of 54031531 in words is "fifty-four million, thirty-one thousand, five hundred thirty-one".