2564507703 has 16 divisors (see below), whose sum is σ = 3513267200. Its totient is φ = 1662749856.

The previous prime is 2564507683. The next prime is 2564507707. The reversal of 2564507703 is 3077054652.

2564507703 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2564507703 - 2⁶ = 2564507639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564507707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410598 + ... + 416796.

It is an arithmetic number, because the mean of its divisors is an integer number (219579200).

Almost surely, 2^2564507703 is an apocalyptic number.

2564507703 is a deficient number, since it is larger than the sum of its proper divisors (948759497).

2564507703 is a wasteful number, since it uses less digits than its factorization.

2564507703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9966.

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 2564507703 is about 50640.9686222529. The cubic root of 2564507703 is about 1368.7832098362.

The spelling of 2564507703 in words is "two billion, five hundred sixty-four million, five hundred seven thousand, seven hundred three".