57422287 has 4 divisors (see below), whose sum is σ = 61839400. Its totient is φ = 53005176.

The previous prime is 57422257. The next prime is 57422293. The reversal of 57422287 is 78222475.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57422287 - 2⁷ = 57422159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57422257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2208537 + ... + 2208562.

It is an arithmetic number, because the mean of its divisors is an integer number (15459850).

Almost surely, 2^57422287 is an apocalyptic number.

57422287 is a deficient number, since it is larger than the sum of its proper divisors (4417113).

57422287 is a wasteful number, since it uses less digits than its factorization.

57422287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4417112.

The product of its digits is 62720, while the sum is 37.

The square root of 57422287 is about 7577.7494680149. The cubic root of 57422287 is about 385.7981687117.

The spelling of 57422287 in words is "fifty-seven million, four hundred twenty-two thousand, two hundred eighty-seven".