2500563765 has 16 divisors (see below), whose sum is σ = 4572459648. Its totient is φ = 1143114816.

The previous prime is 2500563707. The next prime is 2500563781. The reversal of 2500563765 is 5673650052.

It is not a de Polignac number, because 2500563765 - 2¹¹ = 2500561717 is a prime.

It is a Curzon number.

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, 11907342 + ... + 11907551.

It is an arithmetic number, because the mean of its divisors is an integer number (285778728).

Almost surely, 2^2500563765 is an apocalyptic number.

It is an amenable number.

2500563765 is a deficient number, since it is larger than the sum of its proper divisors (2071895883).

2500563765 is a wasteful number, since it uses less digits than its factorization.

2500563765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23814908.

The product of its (nonzero) digits is 189000, while the sum is 39.

The square root of 2500563765 is about 50005.6373322049. The cubic root of 2500563765 is about 1357.3108202062.

The spelling of 2500563765 in words is "two billion, five hundred million, five hundred sixty-three thousand, seven hundred sixty-five".