2526664564 has 6 divisors (see below), whose sum is σ = 4421662994. Its totient is φ = 1263332280.

The previous prime is 2526664523. The next prime is 2526664571. The reversal of 2526664564 is 4654666252.

It can be written as a sum of positive squares in only one way, i.e., 2314379664 + 212284900 = 48108^2 + 14570^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315833067 + ... + 315833074.

Almost surely, 2^2526664564 is an apocalyptic number.

It is an amenable number.

2526664564 is a deficient number, since it is larger than the sum of its proper divisors (1894998430).

2526664564 is a wasteful number, since it uses less digits than its factorization.

2526664564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631666145 (or 631666143 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 46.

The square root of 2526664564 is about 50265.9384076335. The cubic root of 2526664564 is about 1362.0170049549.

The spelling of 2526664564 in words is "two billion, five hundred twenty-six million, six hundred sixty-four thousand, five hundred sixty-four".