2522125421 has 32 divisors (see below), whose sum is σ = 2763694080. Its totient is φ = 2295507456.

The previous prime is 2522125409. The next prime is 2522125429. The reversal of 2522125421 is 1245212252.

It is a de Polignac number, because none of the positive numbers 2^k-2522125421 is a prime.

It is a super-2 number, since 2×2522125421² = 12722233278508854482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522125429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7025240 + ... + 7025598.

It is an arithmetic number, because the mean of its divisors is an integer number (86365440).

Almost surely, 2^2522125421 is an apocalyptic number.

It is an amenable number.

2522125421 is a deficient number, since it is larger than the sum of its proper divisors (241568659).

2522125421 is a wasteful number, since it uses less digits than its factorization.

2522125421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its digits is 3200, while the sum is 26.

The square root of 2522125421 is about 50220.7668300674. The cubic root of 2522125421 is about 1361.2008966416.

Adding to 2522125421 its reverse (1245212252), we get a palindrome (3767337673).

The spelling of 2522125421 in words is "two billion, five hundred twenty-two million, one hundred twenty-five thousand, four hundred twenty-one".