54664240 has 20 divisors (see below), whose sum is σ = 127094544. Its totient is φ = 21865664.

The previous prime is 54664201. The next prime is 54664279. The reversal of 54664240 is 4246645.

It is an interprime number because it is at equal distance from previous prime (54664201) and next prime (54664279).

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341572 + ... + 341731.

Almost surely, 2^54664240 is an apocalyptic number.

It is an amenable number.

54664240 is an abundant number, since it is smaller than the sum of its proper divisors (72430304).

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

54664240 is a wasteful number, since it uses less digits than its factorization.

54664240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683316 (or 683310 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 54664240 is about 7393.5268985782. The cubic root of 54664240 is about 379.5197997126.

The spelling of 54664240 in words is "fifty-four million, six hundred sixty-four thousand, two hundred forty".