53990280 has 64 divisors (see below), whose sum is σ = 179971200. Its totient is φ = 14397120.

The previous prime is 53990273. The next prime is 53990311. The reversal of 53990280 is 8209935.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23916 + ... + 26075.

It is an arithmetic number, because the mean of its divisors is an integer number (2812050).

Almost surely, 2^53990280 is an apocalyptic number.

It is an amenable number.

53990280 is an abundant number, since it is smaller than the sum of its proper divisors (125980920).

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

53990280 is a wasteful number, since it uses less digits than its factorization.

53990280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50011 (or 50001 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 53990280 is about 7347.8078363550. The cubic root of 53990280 is about 377.9536350287.

The spelling of 53990280 in words is "fifty-three million, nine hundred ninety thousand, two hundred eighty".