53787880 has 32 divisors (see below), whose sum is σ = 121401000. Its totient is φ = 21447936.

The previous prime is 53787871. The next prime is 53787907. The reversal of 53787880 is 8878735.

It can be written as a sum of positive squares in 4 ways, for example, as 53787556 + 324 = 7334^2 + 18^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 53787880.

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, 12034 + ... + 15886.

Almost surely, 2^53787880 is an apocalyptic number.

It is an amenable number.

53787880 is an abundant number, since it is smaller than the sum of its proper divisors (67613120).

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

53787880 is a wasteful number, since it uses less digits than its factorization.

53787880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213 (or 4209 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 53787880 is about 7334.0220888677. The cubic root of 53787880 is about 377.4807498626.

The spelling of 53787880 in words is "fifty-three million, seven hundred eighty-seven thousand, eight hundred eighty".