2545564626 has 24 divisors (see below), whose sum is σ = 6016789584. Its totient is φ = 771383160.

The previous prime is 2545564579. The next prime is 2545564627. The reversal of 2545564626 is 6264655452.

2545564626 is a `hidden beast` number, since 2 + 54 + 556 + 46 + 2 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (2545564627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6427996 + ... + 6428391.

It is an arithmetic number, because the mean of its divisors is an integer number (250699566).

Almost surely, 2^2545564626 is an apocalyptic number.

2545564626 is an abundant number, since it is smaller than the sum of its proper divisors (3471224958).

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

2545564626 is a wasteful number, since it uses less digits than its factorization.

2545564626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12856406 (or 12856403 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The square root of 2545564626 is about 50453.5888317174. The cubic root of 2545564626 is about 1365.4046443542.

The spelling of 2545564626 in words is "two billion, five hundred forty-five million, five hundred sixty-four thousand, six hundred twenty-six".