57109825 has 12 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 45410960.

The previous prime is 57109823. The next prime is 57109837. The reversal of 57109825 is 52890175.

It is not a de Polignac number, because 57109825 - 2¹ = 57109823 is a prime.

It is a super-2 number, since 2×57109825² = 6523064223061250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57109823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 11014.

It is an arithmetic number, because the mean of its divisors is an integer number (5937120).

Almost surely, 2^57109825 is an apocalyptic number.

It is an amenable number.

57109825 is a deficient number, since it is larger than the sum of its proper divisors (14135615).

57109825 is a wasteful number, since it uses less digits than its factorization.

57109825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13856 (or 13851 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 57109825 is about 7557.1042734635. The cubic root of 57109825 is about 385.0971250995.

The spelling of 57109825 in words is "fifty-seven million, one hundred nine thousand, eight hundred twenty-five".