57245286 has 32 divisors (see below), whose sum is σ = 132645888. Its totient is φ = 16130880.

The previous prime is 57245263. The next prime is 57245299. The reversal of 57245286 is 68254275.

It is a congruent number.

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, 6270 + ... + 12401.

It is an arithmetic number, because the mean of its divisors is an integer number (4145184).

Almost surely, 2^57245286 is an apocalyptic number.

57245286 is an abundant number, since it is smaller than the sum of its proper divisors (75400602).

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

57245286 is a wasteful number, since it uses less digits than its factorization.

57245286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18756.

The product of its digits is 134400, while the sum is 39.

The square root of 57245286 is about 7566.0614589098. The cubic root of 57245286 is about 385.4013602661.

The spelling of 57245286 in words is "fifty-seven million, two hundred forty-five thousand, two hundred eighty-six".