8575725637 has 2 divisors, whose sum is σ = 8575725638. Its totient is φ = 8575725636.

The previous prime is 8575725623. The next prime is 8575725661. The reversal of 8575725637 is 7365275758.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6608714436 + 1967011201 = 81294^2 + 44351^2 .

It is a cyclic number.

It is not a de Polignac number, because 8575725637 - 2²³ = 8567337029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8575725607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4287862818 + 4287862819.

It is an arithmetic number, because the mean of its divisors is an integer number (4287862819).

Almost surely, 2^8575725637 is an apocalyptic number.

It is an amenable number.

8575725637 is a deficient number, since it is larger than the sum of its proper divisors (1).

8575725637 is an equidigital number, since it uses as much as digits as its factorization.

8575725637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348000, while the sum is 55.

The square root of 8575725637 is about 92605.2138758936. The cubic root of 8575725637 is about 2046.8701505072.

The spelling of 8575725637 in words is "eight billion, five hundred seventy-five million, seven hundred twenty-five thousand, six hundred thirty-seven".