990522522 has 24 divisors (see below), whose sum is σ = 2341235520. Its totient is φ = 300158280.

The previous prime is 990522517. The next prime is 990522529. The reversal of 990522522 is 225225099.

It is a super-2 number, since 2×990522522² = 1962269733178480968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (990522529) 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, 2501122 + ... + 2501517.

It is an arithmetic number, because the mean of its divisors is an integer number (97551480).

Almost surely, 2^990522522 is an apocalyptic number.

990522522 is an abundant number, since it is smaller than the sum of its proper divisors (1350712998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

990522522 is a wasteful number, since it uses less digits than its factorization.

990522522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002658 (or 5002655 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 990522522 is about 31472.5677694083. The cubic root of 990522522 is about 996.8308074958.

The spelling of 990522522 in words is "nine hundred ninety million, five hundred twenty-two thousand, five hundred twenty-two".