54438520 has 32 divisors (see below), whose sum is σ = 123311520. Its totient is φ = 21628800.

The previous prime is 54438499. The next prime is 54438523. The reversal of 54438520 is 2583445.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54438523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1534 + ... + 10546.

It is an arithmetic number, because the mean of its divisors is an integer number (3853485).

Almost surely, 2^54438520 is an apocalyptic number.

It is an amenable number.

54438520 is an abundant number, since it is smaller than the sum of its proper divisors (68873000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54438520 is a wasteful number, since it uses less digits than its factorization.

54438520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175 (or 9171 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 54438520 is about 7378.2464041261. The cubic root of 54438520 is about 378.9967070397.

The spelling of 54438520 in words is "fifty-four million, four hundred thirty-eight thousand, five hundred twenty".