53381760 has 64 divisors (see below), whose sum is σ = 170160480. Its totient is φ = 14234624.

The previous prime is 53381753. The next prime is 53381777. The reversal of 53381760 is 6718335.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×53381760² = 5699224601395200, which contains 22 as substring.

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, 11982 + ... + 15821.

Almost surely, 2^53381760 is an apocalyptic number.

It is an amenable number.

53381760 is an abundant number, since it is smaller than the sum of its proper divisors (116778720).

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

53381760 is a wasteful number, since it uses less digits than its factorization.

53381760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27825 (or 27813 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 53381760 is about 7306.2822283293. The cubic root of 53381760 is about 376.5283051828.

The spelling of 53381760 in words is "fifty-three million, three hundred eighty-one thousand, seven hundred sixty".