2565051500 has 48 divisors (see below), whose sum is σ = 6111364896. Its totient is φ = 932744000.

The previous prime is 2565051493. The next prime is 2565051551. The reversal of 2565051500 is 51505652.

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, 227687 + ... + 238686.

It is an arithmetic number, because the mean of its divisors is an integer number (127320102).

Almost surely, 2^2565051500 is an apocalyptic number.

2565051500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2565051500 is an abundant number, since it is smaller than the sum of its proper divisors (3546313396).

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

2565051500 is a wasteful number, since it uses less digits than its factorization.

2565051500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466403 (or 466391 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2565051500 is about 50646.3374786371. The cubic root of 2565051500 is about 1368.8799519382.

The spelling of 2565051500 in words is "two billion, five hundred sixty-five million, fifty-one thousand, five hundred".