57257311225 has 9 divisors (see below), whose sum is σ = 71000549517. Its totient is φ = 45804891840.

The previous prime is 57257311219. The next prime is 57257311229. The reversal of 57257311225 is 52211375275.

The square root of 57257311225 is 239285.

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

It can be written as a sum of positive squares in 4 ways, for example, as 519976809 + 56737334416 = 22803^2 + 238196^2 .

It is not a de Polignac number, because 57257311225 - 2¹⁷ = 57257180153 is a prime.

It is a super-2 number, since 2×57257311225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57257311229) 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, 1172497 + ... + 1220353.

Almost surely, 2^57257311225 is an apocalyptic number.

57257311225 is the 239285-th square number.

57257311225 is the 119643-rd centered octagonal number.

It is an amenable number.

57257311225 is a deficient number, since it is larger than the sum of its proper divisors (13743238292).

57257311225 is an frugal number, since it uses more digits than its factorization.

57257311225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95724 (or 47862 counting only the distinct ones).

The product of its digits is 147000, while the sum is 40.

The spelling of 57257311225 in words is "fifty-seven billion, two hundred fifty-seven million, three hundred eleven thousand, two hundred twenty-five".