990255502 has 16 divisors (see below), whose sum is σ = 1517942592. Its totient is φ = 484288000.

The previous prime is 990255467. The next prime is 990255503. The reversal of 990255502 is 205552099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990255503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245502 + ... + 249502.

It is an arithmetic number, because the mean of its divisors is an integer number (94871412).

Almost surely, 2^990255502 is an apocalyptic number.

990255502 is a deficient number, since it is larger than the sum of its proper divisors (527687090).

990255502 is a wasteful number, since it uses less digits than its factorization.

990255502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6683.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 990255502 is about 31468.3253764798. The cubic root of 990255502 is about 996.7412259272.

The spelling of 990255502 in words is "nine hundred ninety million, two hundred fifty-five thousand, five hundred two".