57613530 has 32 divisors (see below), whose sum is σ = 148909824. Its totient is φ = 14181696.

The previous prime is 57613519. The next prime is 57613583. The reversal of 57613530 is 3531675.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73474 + ... + 74253.

It is an arithmetic number, because the mean of its divisors is an integer number (4653432).

Almost surely, 2^57613530 is an apocalyptic number.

57613530 is an abundant number, since it is smaller than the sum of its proper divisors (91296294).

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

57613530 is a wasteful number, since it uses less digits than its factorization.

57613530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147750.

The product of its (nonzero) digits is 9450, while the sum is 30.

The square root of 57613530 is about 7590.3576990811. The cubic root of 57613530 is about 386.2259900661.

The spelling of 57613530 in words is "fifty-seven million, six hundred thirteen thousand, five hundred thirty".