57209464225 has 9 divisors (see below), whose sum is σ = 70941218617. Its totient is φ = 45766614640.

The previous prime is 57209464223. The next prime is 57209464237. The reversal of 57209464225 is 52246490275.

The square root of 57209464225 is 239185.

It is a perfect power (a square), and thus also a powerful number.

57209464225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5542355809 + 51667108416 = 74447^2 + 227304^2 .

It is not a de Polignac number, because 57209464225 - 2¹ = 57209464223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57209464223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1172007 + ... + 1219843.

Almost surely, 2^57209464225 is an apocalyptic number.

57209464225 is the 239185-th square number.

57209464225 is the 119593-rd centered octagonal number.

It is an amenable number.

57209464225 is a deficient number, since it is larger than the sum of its proper divisors (13731754392).

57209464225 is an frugal number, since it uses more digits than its factorization.

57209464225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95684 (or 47842 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 57209464225 in words is "fifty-seven billion, two hundred nine million, four hundred sixty-four thousand, two hundred twenty-five".