2565642524 has 48 divisors (see below), whose sum is σ = 4649568000. Its totient is φ = 1238219136.

The previous prime is 2565642509. The next prime is 2565642539. The reversal of 2565642524 is 4252465652.

It is an interprime number because it is at equal distance from previous prime (2565642509) and next prime (2565642539).

Its product of digits (576000) is a multiple of the sum of its prime divisors (1000).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3892907 + ... + 3893565.

It is an arithmetic number, because the mean of its divisors is an integer number (96866000).

Almost surely, 2^2565642524 is an apocalyptic number.

It is an amenable number.

2565642524 is a deficient number, since it is larger than the sum of its proper divisors (2083925476).

2565642524 is a wasteful number, since it uses less digits than its factorization.

2565642524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

The square root of 2565642524 is about 50652.1719573801. The cubic root of 2565642524 is about 1368.9850802725.

The spelling of 2565642524 in words is "two billion, five hundred sixty-five million, six hundred forty-two thousand, five hundred twenty-four".