57075402 has 16 divisors (see below), whose sum is σ = 117833472. Its totient is φ = 18411360.

The previous prime is 57075379. The next prime is 57075407. The reversal of 57075402 is 20457075.

It is a self number, because there is not a number n which added to its sum of digits gives 57075402.

It is not an unprimeable number, because it can be changed into a prime (57075407) 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, 153243 + ... + 153614.

It is an arithmetic number, because the mean of its divisors is an integer number (7364592).

Almost surely, 2^57075402 is an apocalyptic number.

57075402 is an abundant number, since it is smaller than the sum of its proper divisors (60758070).

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

57075402 is a wasteful number, since it uses less digits than its factorization.

57075402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306893.

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 57075402 is about 7554.8264043590. The cubic root of 57075402 is about 385.0197369991.

The spelling of 57075402 in words is "fifty-seven million, seventy-five thousand, four hundred two".