51983199 has 12 divisors (see below), whose sum is σ = 75478416. Its totient is φ = 34474752.

The previous prime is 51983179. The next prime is 51983231. The reversal of 51983199 is 99138915.

It is not a de Polignac number, because 51983199 - 2⁸ = 51982943 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51983119) 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, 13227 + ... + 16700.

It is an arithmetic number, because the mean of its divisors is an integer number (6289868).

Almost surely, 2^51983199 is an apocalyptic number.

51983199 is a deficient number, since it is larger than the sum of its proper divisors (23495217).

51983199 is a wasteful number, since it uses less digits than its factorization.

51983199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30126 (or 30123 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 51983199 is about 7209.9375170663. The cubic root of 51983199 is about 373.2109126850.

The spelling of 51983199 in words is "fifty-one million, nine hundred eighty-three thousand, one hundred ninety-nine".