53520388 has 12 divisors (see below), whose sum is σ = 94944220. Its totient is φ = 26393472.

The previous prime is 53520377. The next prime is 53520391. The reversal of 53520388 is 88302535.

It can be written as a sum of positive squares in 2 ways, for example, as 38713284 + 14807104 = 6222^2 + 3848^2 .

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, 91353 + ... + 91936.

Almost surely, 2^53520388 is an apocalyptic number.

It is an amenable number.

53520388 is a deficient number, since it is larger than the sum of its proper divisors (41423832).

53520388 is a wasteful number, since it uses less digits than its factorization.

53520388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183366 (or 183364 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 53520388 is about 7315.7629813985. The cubic root of 53520388 is about 376.8539610303.

The spelling of 53520388 in words is "fifty-three million, five hundred twenty thousand, three hundred eighty-eight".