57175540 has 12 divisors (see below), whose sum is σ = 120068676. Its totient is φ = 22870208.

The previous prime is 57175529. The next prime is 57175549. The reversal of 57175540 is 4557175.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 36144144 + 21031396 = 6012^2 + 4586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57175496 and 57175505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57175549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1429369 + ... + 1429408.

It is an arithmetic number, because the mean of its divisors is an integer number (10005723).

Almost surely, 2^57175540 is an apocalyptic number.

It is an amenable number.

57175540 is an abundant number, since it is smaller than the sum of its proper divisors (62893136).

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

57175540 is a wasteful number, since it uses less digits than its factorization.

57175540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858786 (or 2858784 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 57175540 is about 7561.4509189705. The cubic root of 57175540 is about 385.2447760345.

The spelling of 57175540 in words is "fifty-seven million, one hundred seventy-five thousand, five hundred forty".