57204534 has 16 divisors (see below), whose sum is σ = 117070272. Its totient is φ = 18624648.

The previous prime is 57204509. The next prime is 57204551. The reversal of 57204534 is 43540275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110604 + ... + 111119.

It is an arithmetic number, because the mean of its divisors is an integer number (7316892).

Almost surely, 2^57204534 is an apocalyptic number.

57204534 is an abundant number, since it is smaller than the sum of its proper divisors (59865738).

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

57204534 is a wasteful number, since it uses less digits than its factorization.

57204534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221771.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 57204534 is about 7563.3679006115. The cubic root of 57204534 is about 385.3098848758.

The spelling of 57204534 in words is "fifty-seven million, two hundred four thousand, five hundred thirty-four".