8557000537 has 2 divisors, whose sum is σ = 8557000538. Its totient is φ = 8557000536.

The previous prime is 8557000483. The next prime is 8557000553. The reversal of 8557000537 is 7350007558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6642413001 + 1914587536 = 81501^2 + 43756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8557000537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8557000537.

It is not a weakly prime, because it can be changed into another prime (8557000567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4278500268 + 4278500269.

It is an arithmetic number, because the mean of its divisors is an integer number (4278500269).

Almost surely, 2^8557000537 is an apocalyptic number.

It is an amenable number.

8557000537 is a deficient number, since it is larger than the sum of its proper divisors (1).

8557000537 is an equidigital number, since it uses as much as digits as its factorization.

8557000537 is an evil number, because the sum of its binary digits is even.

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

The square root of 8557000537 is about 92504.0568677936. The cubic root of 8557000537 is about 2045.3792843089.

The spelling of 8557000537 in words is "eight billion, five hundred fifty-seven million, five hundred thirty-seven", and thus it is an aban number.