2565136508 has 12 divisors (see below), whose sum is σ = 4897078872. Its totient is φ = 1165971120.

The previous prime is 2565136487. The next prime is 2565136513. The reversal of 2565136508 is 8056315652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29149235 + ... + 29149322.

It is an arithmetic number, because the mean of its divisors is an integer number (408089906).

Almost surely, 2^2565136508 is an apocalyptic number.

It is an amenable number.

2565136508 is a deficient number, since it is larger than the sum of its proper divisors (2331942364).

2565136508 is a wasteful number, since it uses less digits than its factorization.

2565136508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58298572 (or 58298570 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The square root of 2565136508 is about 50647.1767031490. The cubic root of 2565136508 is about 1368.8950737219.

The spelling of 2565136508 in words is "two billion, five hundred sixty-five million, one hundred thirty-six thousand, five hundred eight".