8557000538 has 8 divisors (see below), whose sum is σ = 12836762388. Its totient is φ = 4278079744.

The previous prime is 8557000537. The next prime is 8557000553. The reversal of 8557000538 is 8350007558.

It can be written as a sum of positive squares in 2 ways, for example, as 8547557209 + 9443329 = 92453^2 + 3073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8557000495 and 8557000504.

It is not an unprimeable number, because it can be changed into a prime (8557000537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184181 + ... + 225912.

Almost surely, 2^8557000538 is an apocalyptic number.

8557000538 is a deficient number, since it is larger than the sum of its proper divisors (4279761850).

8557000538 is a wasteful number, since it uses less digits than its factorization.

8557000538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420528.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 8557000538 is about 92504.0568731988. The cubic root of 8557000538 is about 2045.3792843885.

The spelling of 8557000538 in words is "eight billion, five hundred fifty-seven million, five hundred thirty-eight", and thus it is an aban number.