54691320 has 32 divisors (see below), whose sum is σ = 164074320. Its totient is φ = 14584320.

The previous prime is 54691297. The next prime is 54691327. The reversal of 54691320 is 2319645.

It is a super-2 number, since 2×54691320² = 5982280966684800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54691327) 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, 227761 + ... + 228000.

Almost surely, 2^54691320 is an apocalyptic number.

It is an amenable number.

54691320 is an abundant number, since it is smaller than the sum of its proper divisors (109383000).

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

54691320 is a wasteful number, since it uses less digits than its factorization.

54691320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455775 (or 455771 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 54691320 is about 7395.3580035046. The cubic root of 54691320 is about 379.5824591986.

The spelling of 54691320 in words is "fifty-four million, six hundred ninety-one thousand, three hundred twenty".