57507478 has 12 divisors (see below), whose sum is σ = 100344852. Its totient is φ = 24646020.

The previous prime is 57507467. The next prime is 57507479. The reversal of 57507478 is 87470575.

It is a super-2 number, since 2×57507478² = 6614220051840968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57507479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 293308 + ... + 293503.

It is an arithmetic number, because the mean of its divisors is an integer number (8362071).

Almost surely, 2^57507478 is an apocalyptic number.

57507478 is a deficient number, since it is larger than the sum of its proper divisors (42837374).

57507478 is a wasteful number, since it uses less digits than its factorization.

57507478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586827 (or 586820 counting only the distinct ones).

The product of its (nonzero) digits is 274400, while the sum is 43.

The square root of 57507478 is about 7583.3685127389. The cubic root of 57507478 is about 385.9888629144.

The spelling of 57507478 in words is "fifty-seven million, five hundred seven thousand, four hundred seventy-eight".