51613799 has 8 divisors (see below), whose sum is σ = 52445232. Its totient is φ = 50787520.

The previous prime is 51613777. The next prime is 51613801. The reversal of 51613799 is 99731615.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51613799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51613759) 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, 22217 + ... + 24429.

It is an arithmetic number, because the mean of its divisors is an integer number (6555654).

Almost surely, 2^51613799 is an apocalyptic number.

51613799 is a deficient number, since it is larger than the sum of its proper divisors (831433).

51613799 is a wasteful number, since it uses less digits than its factorization.

51613799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577.

The product of its digits is 51030, while the sum is 41.

The square root of 51613799 is about 7184.2744240459. The cubic root of 51613799 is about 372.3247804357.

The spelling of 51613799 in words is "fifty-one million, six hundred thirteen thousand, seven hundred ninety-nine".