57887500 has 72 divisors (see below), whose sum is σ = 138459888. Its totient is φ = 21000000.

The previous prime is 57887491. The next prime is 57887513. The reversal of 57887500 is 578875.

57887500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 137290 + ... + 137710.

It is an arithmetic number, because the mean of its divisors is an integer number (1923054).

Almost surely, 2^57887500 is an apocalyptic number.

57887500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57887500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69229944).

57887500 is an abundant number, since it is smaller than the sum of its proper divisors (80572388).

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

57887500 is a wasteful number, since it uses less digits than its factorization.

57887500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 57887500 is about 7608.3835339709. The cubic root of 57887500 is about 386.8372298777.

Multiplying 57887500 by its reverse (578875), we get a square (33509626562500 = 5788750²).

57887500 divided by its reverse (578875) gives a square (100 = 10²).

The spelling of 57887500 in words is "fifty-seven million, eight hundred eighty-seven thousand, five hundred".