2522640365 has 16 divisors (see below), whose sum is σ = 3540079488. Its totient is φ = 1689581376.

The previous prime is 2522640349. The next prime is 2522640397. The reversal of 2522640365 is 5630462252.

It is not a de Polignac number, because 2522640365 - 2⁴ = 2522640349 is a prime.

It is a super-4 number, since 4×2522640365⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

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, 836582 + ... + 839591.

It is an arithmetic number, because the mean of its divisors is an integer number (221254968).

Almost surely, 2^2522640365 is an apocalyptic number.

It is an amenable number.

2522640365 is a deficient number, since it is larger than the sum of its proper divisors (1017439123).

2522640365 is a wasteful number, since it uses less digits than its factorization.

2522640365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676228.

The product of its (nonzero) digits is 86400, while the sum is 35.

The square root of 2522640365 is about 50225.8933718456. The cubic root of 2522640365 is about 1361.2935294306.

The spelling of 2522640365 in words is "two billion, five hundred twenty-two million, six hundred forty thousand, three hundred sixty-five".