2122523506 has 32 divisors (see below), whose sum is σ = 3304648368. Its totient is φ = 1021762560.

The previous prime is 2122523471. The next prime is 2122523521. The reversal of 2122523506 is 6053252212.

It can be written as a sum of positive squares in 8 ways, for example, as 666414225 + 1456109281 = 25815^2 + 38159^2 .

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, 2226726 + ... + 2227678.

Almost surely, 2^2122523506 is an apocalyptic number.

2122523506 is a deficient number, since it is larger than the sum of its proper divisors (1182124862).

2122523506 is a wasteful number, since it uses less digits than its factorization.

2122523506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2122523506 is about 46070.8531069265. The cubic root of 2122523506 is about 1285.1411687631.

Adding to 2122523506 its reverse (6053252212), we get a palindrome (8175775718).

The spelling of 2122523506 in words is "two billion, one hundred twenty-two million, five hundred twenty-three thousand, five hundred six".