2520606685 has 16 divisors (see below), whose sum is σ = 3241547136. Its totient is φ = 1876678848.

The previous prime is 2520606667. The next prime is 2520606691. The reversal of 2520606685 is 5866060252.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2520606685 - 2²³ = 2512218077 is a prime.

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, 291939 + ... + 300448.

It is an arithmetic number, because the mean of its divisors is an integer number (202596696).

Almost surely, 2^2520606685 is an apocalyptic number.

It is an amenable number.

2520606685 is a deficient number, since it is larger than the sum of its proper divisors (720940451).

2520606685 is a wasteful number, since it uses less digits than its factorization.

2520606685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592452.

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 2520606685 is about 50205.6439556351. The cubic root of 2520606685 is about 1360.9276192067.

The spelling of 2520606685 in words is "two billion, five hundred twenty million, six hundred six thousand, six hundred eighty-five".