2565562612 has 6 divisors (see below), whose sum is σ = 4489734578. Its totient is φ = 1282781304.

The previous prime is 2565562553. The next prime is 2565562613. The reversal of 2565562612 is 2162655652.

2565562612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1301333476 + 1264229136 = 36074^2 + 35556^2 .

It is a super-2 number, since 2×2565562612² = 13164223032184525088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565562613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320695323 + ... + 320695330.

Almost surely, 2^2565562612 is an apocalyptic number.

It is an amenable number.

2565562612 is a deficient number, since it is larger than the sum of its proper divisors (1924171966).

2565562612 is a wasteful number, since it uses less digits than its factorization.

2565562612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641390657 (or 641390655 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 2565562612 is about 50651.3831203058. The cubic root of 2565562612 is about 1368.9708668775.

The spelling of 2565562612 in words is "two billion, five hundred sixty-five million, five hundred sixty-two thousand, six hundred twelve".