57070821025 has 9 divisors (see below), whose sum is σ = 70769299251. Its totient is φ = 45655701240.

The previous prime is 57070820971. The next prime is 57070821029. The reversal of 57070821025 is 52012807075.

The square root of 57070821025 is 238895.

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

It can be written as a sum of positive squares in only one way, i.e., 20545495569 + 36525325456 = 143337^2 + 191116^2 .

It is not a de Polignac number, because 57070821025 - 2³⁵ = 22711082657 is a prime.

It is a super-2 number, since 2×57070821025² (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 (57070821029) 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, 1170586 + ... + 1218364.

Almost surely, 2^57070821025 is an apocalyptic number.

57070821025 is the 238895-th square number.

57070821025 is the 119448-th centered octagonal number.

It is an amenable number.

57070821025 is a deficient number, since it is larger than the sum of its proper divisors (13698478226).

57070821025 is an frugal number, since it uses more digits than its factorization.

57070821025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95568 (or 47784 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 57070821025 in words is "fifty-seven billion, seventy million, eight hundred twenty-one thousand, twenty-five".