54431618 has 8 divisors (see below), whose sum is σ = 85944720. Its totient is φ = 25783380.

The previous prime is 54431617. The next prime is 54431621. The reversal of 54431618 is 81613445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (54431617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 716168 + ... + 716243.

It is an arithmetic number, because the mean of its divisors is an integer number (10743090).

Almost surely, 2^54431618 is an apocalyptic number.

54431618 is a deficient number, since it is larger than the sum of its proper divisors (31513102).

54431618 is a wasteful number, since it uses less digits than its factorization.

54431618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432432.

The product of its digits is 11520, while the sum is 32.

The square root of 54431618 is about 7377.7786629852. The cubic root of 54431618 is about 378.9806893018.

The spelling of 54431618 in words is "fifty-four million, four hundred thirty-one thousand, six hundred eighteen".