54611531 has 16 divisors (see below), whose sum is σ = 63308448. Its totient is φ = 46656000.

The previous prime is 54611483. The next prime is 54611533. The reversal of 54611531 is 13511645.

It is a cyclic number.

It is not a de Polignac number, because 54611531 - 2¹⁴ = 54595147 is a prime.

It is a super-2 number, since 2×54611531² = 5964838636327922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54611531.

It is not an unprimeable number, because it can be changed into a prime (54611533) 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, 11456 + ... + 15506.

It is an arithmetic number, because the mean of its divisors is an integer number (3956778).

Almost surely, 2^54611531 is an apocalyptic number.

54611531 is a deficient number, since it is larger than the sum of its proper divisors (8696917).

54611531 is a wasteful number, since it uses less digits than its factorization.

54611531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142.

The product of its digits is 1800, while the sum is 26.

The square root of 54611531 is about 7389.9615019295. The cubic root of 54611531 is about 379.3977787954.

It can be divided in two parts, 546 and 11531, that multiplied together give a palindrome (6295926).

The spelling of 54611531 in words is "fifty-four million, six hundred eleven thousand, five hundred thirty-one".