5251383657 has 40 divisors (see below), whose sum is σ = 8945072136. Its totient is φ = 3041515008.

The previous prime is 5251383653. The next prime is 5251383659. The reversal of 5251383657 is 7563831525.

5251383657 is a `hidden beast` number, since 5 + 2 + 513 + 83 + 6 + 57 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2126685456 + 3124698201 = 46116^2 + 55899^2 .

It is not a de Polignac number, because 5251383657 - 2² = 5251383653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5251383653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 128778 + ... + 164579.

Almost surely, 2^5251383657 is an apocalyptic number.

It is an amenable number.

5251383657 is a deficient number, since it is larger than the sum of its proper divisors (3693688479).

5251383657 is a wasteful number, since it uses less digits than its factorization.

5251383657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293399 (or 293390 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 5251383657 is about 72466.4312423345. The cubic root of 5251383657 is about 1738.1659956537.

The spelling of 5251383657 in words is "five billion, two hundred fifty-one million, three hundred eighty-three thousand, six hundred fifty-seven".