57161825 has 24 divisors (see below), whose sum is σ = 82548288. Its totient is φ = 38450880.

The previous prime is 57161821. The next prime is 57161833. The reversal of 57161825 is 52816175.

It is not a de Polignac number, because 57161825 - 2² = 57161821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57161821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6194 + ... + 12356.

It is an arithmetic number, because the mean of its divisors is an integer number (3439512).

Almost surely, 2^57161825 is an apocalyptic number.

It is an amenable number.

57161825 is a deficient number, since it is larger than the sum of its proper divisors (25386463).

57161825 is a wasteful number, since it uses less digits than its factorization.

57161825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233 (or 6228 counting only the distinct ones).

The product of its digits is 16800, while the sum is 35.

The square root of 57161825 is about 7560.5439619117. The cubic root of 57161825 is about 385.2139700020.

The spelling of 57161825 in words is "fifty-seven million, one hundred sixty-one thousand, eight hundred twenty-five".