57513530 has 16 divisors (see below), whose sum is σ = 103749120. Its totient is φ = 22955472.

The previous prime is 57513527. The next prime is 57513539. The reversal of 57513530 is 3531575.

It is a super-2 number, since 2×57513530² = 6615612266121800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57513493 and 57513502.

It is not an unprimeable number, because it can be changed into a prime (57513539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214 + ... + 10793.

It is an arithmetic number, because the mean of its divisors is an integer number (6484320).

Almost surely, 2^57513530 is an apocalyptic number.

57513530 is a deficient number, since it is larger than the sum of its proper divisors (46235590).

57513530 is a wasteful number, since it uses less digits than its factorization.

57513530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12493.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 57513530 is about 7583.7675333570. The cubic root of 57513530 is about 386.0024027341.

The spelling of 57513530 in words is "fifty-seven million, five hundred thirteen thousand, five hundred thirty".