990525722 has 8 divisors (see below), whose sum is σ = 1507964736. Its totient is φ = 487870812.

The previous prime is 990525703. The next prime is 990525737. The reversal of 990525722 is 227525099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×990525722² = 1962282411887242568, 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 990525722.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695858 + ... + 3696125.

It is an arithmetic number, because the mean of its divisors is an integer number (188495592).

Almost surely, 2^990525722 is an apocalyptic number.

990525722 is a deficient number, since it is larger than the sum of its proper divisors (517439014).

990525722 is a wasteful number, since it uses less digits than its factorization.

990525722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392052.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 990525722 is about 31472.6186072910. The cubic root of 990525722 is about 996.8318809545.

The spelling of 990525722 in words is "nine hundred ninety million, five hundred twenty-five thousand, seven hundred twenty-two".