2557570064 has 20 divisors (see below), whose sum is σ = 5663191104. Its totient is φ = 1096101408.

The previous prime is 2557570061. The next prime is 2557570087. The reversal of 2557570064 is 4600757552.

It is not an unprimeable number, because it can be changed into a prime (2557570061) 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, 11417612 + ... + 11417835.

Almost surely, 2^2557570064 is an apocalyptic number.

It is an amenable number.

2557570064 is an abundant number, since it is smaller than the sum of its proper divisors (3105621040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2557570064 is a wasteful number, since it uses less digits than its factorization.

2557570064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22835462 (or 22835456 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 2557570064 is about 50572.4239482349. The cubic root of 2557570064 is about 1367.5477940621.

The spelling of 2557570064 in words is "two billion, five hundred fifty-seven million, five hundred seventy thousand, sixty-four".