2565263610 has 96 divisors (see below), whose sum is σ = 8208869760. Its totient is φ = 541240704.

The previous prime is 2565263567. The next prime is 2565263611. The reversal of 2565263610 is 163625652.

It is a happy number.

2565263610 is a `hidden beast` number, since 2 + 5 + 6 + 5 + 2 + 636 + 10 = 666.

It is not an unprimeable number, because it can be changed into a prime (2565263611) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 148420 + ... + 164799.

It is an arithmetic number, because the mean of its divisors is an integer number (85509060).

Almost surely, 2^2565263610 is an apocalyptic number.

2565263610 is an abundant number, since it is smaller than the sum of its proper divisors (5643606150).

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

2565263610 is a wasteful number, since it uses less digits than its factorization.

2565263610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313252 (or 313249 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2565263610 is about 50648.4314663347. The cubic root of 2565263610 is about 1368.9176828407.

The spelling of 2565263610 in words is "two billion, five hundred sixty-five million, two hundred sixty-three thousand, six hundred ten".