53315560 has 32 divisors (see below), whose sum is σ = 120169800. Its totient is φ = 21288960.

The previous prime is 53315513. The next prime is 53315579. The reversal of 53315560 is 6551335.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48413764 + 4901796 = 6958^2 + 2214^2 .

It is a super-2 number, since 2×53315560² = 5685097876227200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39700 + ... + 41020.

Almost surely, 2^53315560 is an apocalyptic number.

It is an amenable number.

53315560 is an abundant number, since it is smaller than the sum of its proper divisors (66854240).

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

53315560 is a wasteful number, since it uses less digits than its factorization.

53315560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53315560 is about 7301.7504750573. The cubic root of 53315560 is about 376.3725935392.

Adding to 53315560 its reverse (6551335), we get a palindrome (59866895).

The spelling of 53315560 in words is "fifty-three million, three hundred fifteen thousand, five hundred sixty".