51323899 has 8 divisors (see below), whose sum is σ = 56400048. Its totient is φ = 46316160.

The previous prime is 51323893. The next prime is 51323903. The reversal of 51323899 is 99832315.

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

It is a de Polignac number, because none of the positive numbers 2^k-51323899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51323893) 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, 15522 + ... + 18535.

It is an arithmetic number, because the mean of its divisors is an integer number (7050006).

Almost surely, 2^51323899 is an apocalyptic number.

51323899 is a deficient number, since it is larger than the sum of its proper divisors (5076149).

51323899 is a wasteful number, since it uses less digits than its factorization.

51323899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34205.

The product of its digits is 58320, while the sum is 40.

The square root of 51323899 is about 7164.0700024497. The cubic root of 51323899 is about 371.6263905181.

The spelling of 51323899 in words is "fifty-one million, three hundred twenty-three thousand, eight hundred ninety-nine".