2564943502 has 32 divisors (see below), whose sum is σ = 4292559360. Its totient is φ = 1139460480.

The previous prime is 2564943497. The next prime is 2564943517. The reversal of 2564943502 is 2053494652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008949 + ... + 1011487.

It is an arithmetic number, because the mean of its divisors is an integer number (134142480).

Almost surely, 2^2564943502 is an apocalyptic number.

2564943502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2564943502 is a deficient number, since it is larger than the sum of its proper divisors (1727615858).

2564943502 is a wasteful number, since it uses less digits than its factorization.

2564943502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3576.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 2564943502 is about 50645.2712698826. The cubic root of 2564943502 is about 1368.8607400599.

The spelling of 2564943502 in words is "two billion, five hundred sixty-four million, nine hundred forty-three thousand, five hundred two".