57442507 has 12 divisors (see below), whose sum is σ = 62333280. Its totient is φ = 52900736.

The previous prime is 57442501. The next prime is 57442519. The reversal of 57442507 is 70524475.

It is not a de Polignac number, because 57442507 - 2³ = 57442499 is a prime.

It is a super-2 number, since 2×57442507² = 6599283220890098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57442501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11469 + ... + 15697.

It is an arithmetic number, because the mean of its divisors is an integer number (5194440).

Almost surely, 2^57442507 is an apocalyptic number.

57442507 is a deficient number, since it is larger than the sum of its proper divisors (4890773).

57442507 is a wasteful number, since it uses less digits than its factorization.

57442507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310 (or 4293 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 57442507 is about 7579.0835197931. The cubic root of 57442507 is about 385.8434468544.

The spelling of 57442507 in words is "fifty-seven million, four hundred forty-two thousand, five hundred seven".