54431869 has 16 divisors (see below), whose sum is σ = 59558400. Its totient is φ = 49585536.

The previous prime is 54431857. The next prime is 54431891. The reversal of 54431869 is 96813445.

It is a cyclic number.

It is not a de Polignac number, because 54431869 - 2⁵ = 54431837 is a prime.

It is a super-2 number, since 2×54431869² = 5925656725666322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54431809) 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, 52177 + ... + 53209.

It is an arithmetic number, because the mean of its divisors is an integer number (3722400).

Almost surely, 2^54431869 is an apocalyptic number.

It is an amenable number.

54431869 is a deficient number, since it is larger than the sum of its proper divisors (5126531).

54431869 is a wasteful number, since it uses less digits than its factorization.

54431869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 103680, while the sum is 40.

The square root of 54431869 is about 7377.7956735057. The cubic root of 54431869 is about 378.9812718310.

The spelling of 54431869 in words is "fifty-four million, four hundred thirty-one thousand, eight hundred sixty-nine".