2522521228 has 48 divisors (see below), whose sum is σ = 4785661440. Its totient is φ = 1160297600.

The previous prime is 2522521219. The next prime is 2522521229. The reversal of 2522521228 is 8221252252.

It is a happy number.

2522521228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2522521228² = 12726226691421255968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2522521228.

It is not an unprimeable number, because it can be changed into a prime (2522521229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263103 + ... + 272521.

It is an arithmetic number, because the mean of its divisors is an integer number (99701280).

Almost surely, 2^2522521228 is an apocalyptic number.

It is an amenable number.

2522521228 is a deficient number, since it is larger than the sum of its proper divisors (2263140212).

2522521228 is a wasteful number, since it uses less digits than its factorization.

2522521228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558 (or 9556 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 2522521228 is about 50224.7073460861. The cubic root of 2522521228 is about 1361.2720991094.

The spelling of 2522521228 in words is "two billion, five hundred twenty-two million, five hundred twenty-one thousand, two hundred twenty-eight".