996553031 has 2 divisors, whose sum is σ = 996553032. Its totient is φ = 996553030.

The previous prime is 996552959. The next prime is 996553049. The reversal of 996553031 is 130355699.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 996553031 - 2²² = 992358727 is a prime.

It is a super-2 number, since 2×996553031² = 1986235887190573922, 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 996553031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996553331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498276515 + 498276516.

It is an arithmetic number, because the mean of its divisors is an integer number (498276516).

Almost surely, 2^996553031 is an apocalyptic number.

996553031 is a deficient number, since it is larger than the sum of its proper divisors (1).

996553031 is an equidigital number, since it uses as much as digits as its factorization.

996553031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109350, while the sum is 41.

The square root of 996553031 is about 31568.2281891144. The cubic root of 996553031 is about 998.8496876221.

The spelling of 996553031 in words is "nine hundred ninety-six million, five hundred fifty-three thousand, thirty-one".