52788720 has 40 divisors (see below), whose sum is σ = 163645776. Its totient is φ = 14076928.

The previous prime is 52788683. The next prime is 52788731. The reversal of 52788720 is 2788725.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 109737 + ... + 110216.

Almost surely, 2^52788720 is an apocalyptic number.

It is an amenable number.

52788720 is an abundant number, since it is smaller than the sum of its proper divisors (110857056).

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

52788720 is a wasteful number, since it uses less digits than its factorization.

52788720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219969 (or 219963 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 52788720 is about 7265.5846289201. The cubic root of 52788720 is about 375.1287735524.

The spelling of 52788720 in words is "fifty-two million, seven hundred eighty-eight thousand, seven hundred twenty".