2122640325 has 72 divisors (see below), whose sum is σ = 4125001608. Its totient is φ = 1037168640.

The previous prime is 2122640269. The next prime is 2122640393. The reversal of 2122640325 is 5230462212.

It is a happy number.

2122640325 is a `hidden beast` number, since 2 + 12 + 2 + 640 + 3 + 2 + 5 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 514790721 + 1607849604 = 22689^2 + 40098^2 .

It is not a de Polignac number, because 2122640325 - 2¹¹ = 2122638277 is a prime.

It is a super-2 number, since 2×2122640325² = 9011203898632211250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 398077 + ... + 403373.

It is an arithmetic number, because the mean of its divisors is an integer number (57291689).

Almost surely, 2^2122640325 is an apocalyptic number.

2122640325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2122640325 is a deficient number, since it is larger than the sum of its proper divisors (2002361283).

2122640325 is a wasteful number, since it uses less digits than its factorization.

2122640325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463 (or 5455 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2122640325 is about 46072.1209084192. The cubic root of 2122640325 is about 1285.1647454398.

The spelling of 2122640325 in words is "two billion, one hundred twenty-two million, six hundred forty thousand, three hundred twenty-five".