2564862530 has 16 divisors (see below), whose sum is σ = 4617420984. Its totient is φ = 1025796480.

The previous prime is 2564862481. The next prime is 2564862557. The reversal of 2564862530 is 352684652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 952277881 + 1612584649 = 30859^2 + 40157^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77750 + ... + 105710.

Almost surely, 2^2564862530 is an apocalyptic number.

2564862530 is a deficient number, since it is larger than the sum of its proper divisors (2052558454).

2564862530 is a wasteful number, since it uses less digits than its factorization.

2564862530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37141.

The product of its (nonzero) digits is 345600, while the sum is 41.

The square root of 2564862530 is about 50644.4718602139. The cubic root of 2564862530 is about 1368.8463355115.

The spelling of 2564862530 in words is "two billion, five hundred sixty-four million, eight hundred sixty-two thousand, five hundred thirty".