57640807225 has 9 divisors (see below), whose sum is σ = 71476089517. Its totient is φ = 46111685440.

The previous prime is 57640807201. The next prime is 57640807241. The reversal of 57640807225 is 52270804675.

The square root of 57640807225 is 240085.

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 13475262889 + 44165544336 = 116083^2 + 210156^2 .

It is not a de Polignac number, because 57640807225 - 2¹³ = 57640799033 is a prime.

It is a super-2 number, since 2×57640807225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1176417 + ... + 1224433.

Almost surely, 2^57640807225 is an apocalyptic number.

57640807225 is the 240085-th square number.

57640807225 is the 120043-rd centered octagonal number.

It is an amenable number.

57640807225 is a deficient number, since it is larger than the sum of its proper divisors (13835282292).

57640807225 is an frugal number, since it uses more digits than its factorization.

57640807225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96044 (or 48022 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 57640807225 in words is "fifty-seven billion, six hundred forty million, eight hundred seven thousand, two hundred twenty-five".