999965522 has 16 divisors (see below), whose sum is σ = 1538530200. Its totient is φ = 487249152.

The previous prime is 999965507. The next prime is 999965537. The reversal of 999965522 is 225569999.

999965522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (999965507) and next prime (999965537).

It can be written as a sum of positive squares in 4 ways, for example, as 915123001 + 84842521 = 30251^2 + 9211^2 .

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15863 + ... + 47450.

Almost surely, 2^999965522 is an apocalyptic number.

999965522 is a deficient number, since it is larger than the sum of its proper divisors (538564678).

999965522 is a wasteful number, since it uses less digits than its factorization.

999965522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63517.

The product of its digits is 3936600, while the sum is 56.

The square root of 999965522 is about 31622.2314519390. The cubic root of 999965522 is about 999.9885072012.

The spelling of 999965522 in words is "nine hundred ninety-nine million, nine hundred sixty-five thousand, five hundred twenty-two".