53297928 has 48 divisors (see below), whose sum is σ = 149011200. Its totient is φ = 17192160.

The previous prime is 53297927. The next prime is 53297929. The reversal of 53297928 is 82979235.

53297928 is a `hidden beast` number, since 532 + 97 + 9 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (53297927) and next prime (53297929).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53297927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9708 + ... + 14171.

It is an arithmetic number, because the mean of its divisors is an integer number (3104400).

Almost surely, 2^53297928 is an apocalyptic number.

It is an amenable number.

53297928 is an abundant number, since it is smaller than the sum of its proper divisors (95713272).

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

53297928 is a wasteful number, since it uses less digits than its factorization.

53297928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23922 (or 23915 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 53297928 is about 7300.5429935040. The cubic root of 53297928 is about 376.3310988783.

The spelling of 53297928 in words is "fifty-three million, two hundred ninety-seven thousand, nine hundred twenty-eight".