57287022 has 24 divisors (see below), whose sum is σ = 123531576. Its totient is φ = 17606208.

The previous prime is 57287017. The next prime is 57287023. The reversal of 57287022 is 22078275.

57287022 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 not an unprimeable number, because it can be changed into a prime (57287023) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 66418 + ... + 67274.

It is an arithmetic number, because the mean of its divisors is an integer number (5147149).

Almost surely, 2^57287022 is an apocalyptic number.

57287022 is an abundant number, since it is smaller than the sum of its proper divisors (66244554).

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

57287022 is an equidigital number, since it uses as much as digits as its factorization.

57287022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 57287022 is about 7568.8190624430. The cubic root of 57287022 is about 385.4949994389.

The spelling of 57287022 in words is "fifty-seven million, two hundred eighty-seven thousand, twenty-two".