2565306790 has 16 divisors (see below), whose sum is σ = 4658417568. Its totient is φ = 1017041536.

The previous prime is 2565306769. The next prime is 2565306839. The reversal of 2565306790 is 976035652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133962 + ... + 1136221.

It is an arithmetic number, because the mean of its divisors is an integer number (291151098).

Almost surely, 2^2565306790 is an apocalyptic number.

2565306790 is a deficient number, since it is larger than the sum of its proper divisors (2093110778).

2565306790 is a wasteful number, since it uses less digits than its factorization.

2565306790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270303.

The product of its (nonzero) digits is 340200, while the sum is 43.

The square root of 2565306790 is about 50648.8577363794. The cubic root of 2565306790 is about 1368.9253636022.

The spelling of 2565306790 in words is "two billion, five hundred sixty-five million, three hundred six thousand, seven hundred ninety".