57725780 has 72 divisors (see below), whose sum is σ = 142474752. Its totient is φ = 19244736.

The previous prime is 57725749. The next prime is 57725803. The reversal of 57725780 is 8752775.

57725780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258749 + ... + 258971.

It is an arithmetic number, because the mean of its divisors is an integer number (1978816).

Almost surely, 2^57725780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57725780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71237376).

57725780 is an abundant number, since it is smaller than the sum of its proper divisors (84748972).

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

57725780 is a wasteful number, since it uses less digits than its factorization.

57725780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 137200, while the sum is 41.

The square root of 57725780 is about 7597.7483506628. The cubic root of 57725780 is about 386.4766588585.

The spelling of 57725780 in words is "fifty-seven million, seven hundred twenty-five thousand, seven hundred eighty".