57421875 has 54 divisors (see below), whose sum is σ = 111328068. Its totient is φ = 26250000.

The previous prime is 57421867. The next prime is 57421879. The reversal of 57421875 is 57812475.

It is not a de Polignac number, because 57421875 - 2³ = 57421867 is a prime.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (57421879) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 8203122 + ... + 8203128.

Almost surely, 2^57421875 is an apocalyptic number.

57421875 is a deficient number, since it is larger than the sum of its proper divisors (53906193).

57421875 is an frugal number, since it uses more digits than its factorization.

57421875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 15 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 57421875 is about 7577.7222831138. The cubic root of 57421875 is about 385.7972460198.

The spelling of 57421875 in words is "fifty-seven million, four hundred twenty-one thousand, eight hundred seventy-five".