2566001522 has 90 divisors (see below), whose sum is σ = 4883411853. Its totient is φ = 1010955456.

The previous prime is 2566001513. The next prime is 2566001527. The reversal of 2566001522 is 2251006652.

It can be written as a sum of positive squares in 2 ways, for example, as 2348468521 + 217533001 = 48461^2 + 14749^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35819.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566001527) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 59674433 + ... + 59674475.

Almost surely, 2^2566001522 is an apocalyptic number.

2566001522 is a deficient number, since it is larger than the sum of its proper divisors (2317410331).

2566001522 is an frugal number, since it uses more digits than its factorization.

2566001522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2566001522 is about 50655.7155906419. The cubic root of 2566001522 is about 1369.0489291239.

Multiplying 2566001522 by its product of nonzero digits (7200), we get a square (18475210958400 = 4298280²).

The spelling of 2566001522 in words is "two billion, five hundred sixty-six million, one thousand, five hundred twenty-two".