54659720 has 16 divisors (see below), whose sum is σ = 122984460. Its totient is φ = 21863872.

The previous prime is 54659719. The next prime is 54659729. The reversal of 54659720 is 2795645.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 52041796 + 2617924 = 7214^2 + 1618^2 .

It is not an unprimeable number, because it can be changed into a prime (54659729) 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, 683207 + ... + 683286.

Almost surely, 2^54659720 is an apocalyptic number.

It is an amenable number.

54659720 is an abundant number, since it is smaller than the sum of its proper divisors (68324740).

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

54659720 is a wasteful number, since it uses less digits than its factorization.

54659720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366504 (or 1366500 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 54659720 is about 7393.2212194685. The cubic root of 54659720 is about 379.5093390240.

The spelling of 54659720 in words is "fifty-four million, six hundred fifty-nine thousand, seven hundred twenty".