2522521243 has 12 divisors (see below), whose sum is σ = 2862134464. Its totient is φ = 2219223600.

The previous prime is 2522521229. The next prime is 2522521307. The reversal of 2522521243 is 3421252252.

It is not a de Polignac number, because 2522521243 - 2¹³ = 2522513051 is a prime.

It is a super-2 number, since 2×2522521243² = 12726226842772530098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2522522243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332496 + ... + 339997.

Almost surely, 2^2522521243 is an apocalyptic number.

2522521243 is a deficient number, since it is larger than the sum of its proper divisors (339613221).

2522521243 is a wasteful number, since it uses less digits than its factorization.

2522521243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672546 (or 672535 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 2522521243 is about 50224.7074954150. The cubic root of 2522521243 is about 1361.2721018076.

Adding to 2522521243 its reverse (3421252252), we get a palindrome (5943773495).

The spelling of 2522521243 in words is "two billion, five hundred twenty-two million, five hundred twenty-one thousand, two hundred forty-three".