57500225 has 12 divisors (see below), whose sum is σ = 71957820. Its totient is φ = 45576000.

The previous prime is 57500167. The next prime is 57500263. The reversal of 57500225 is 52200575.

It can be written as a sum of positive squares in 6 ways, for example, as 1893376 + 55606849 = 1376^2 + 7457^2 .

It is not a de Polignac number, because 57500225 - 2⁸ = 57499969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57500194 and 57500203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7826 + ... + 13275.

It is an arithmetic number, because the mean of its divisors is an integer number (5996485).

Almost surely, 2^57500225 is an apocalyptic number.

It is an amenable number.

57500225 is a deficient number, since it is larger than the sum of its proper divisors (14457595).

57500225 is a wasteful number, since it uses less digits than its factorization.

57500225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21220 (or 21215 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 57500225 is about 7582.8902800977. The cubic root of 57500225 is about 385.9726349093.

The spelling of 57500225 in words is "fifty-seven million, five hundred thousand, two hundred twenty-five".