57135572 has 24 divisors (see below), whose sum is σ = 114014376. Its totient is φ = 24818688.

The previous prime is 57135569. The next prime is 57135577. The reversal of 57135572 is 27553175.

It can be written as a sum of positive squares in 4 ways, for example, as 7376656 + 49758916 = 2716^2 + 7054^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57135577) 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, 31433 + ... + 33200.

It is an arithmetic number, because the mean of its divisors is an integer number (4750599).

Almost surely, 2^57135572 is an apocalyptic number.

57135572 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57135572 is a deficient number, since it is larger than the sum of its proper divisors (56878804).

57135572 is a wasteful number, since it uses less digits than its factorization.

57135572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64667 (or 64665 counting only the distinct ones).

The product of its digits is 36750, while the sum is 35.

The square root of 57135572 is about 7558.8075779186. The cubic root of 57135572 is about 385.1549879164.

The spelling of 57135572 in words is "fifty-seven million, one hundred thirty-five thousand, five hundred seventy-two".