51797311 has 8 divisors (see below), whose sum is σ = 55793664. Its totient is φ = 47946360.

The previous prime is 51797297. The next prime is 51797323. The reversal of 51797311 is 11379715.

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

It is a cyclic number.

It is not a de Polignac number, because 51797311 - 2⁷ = 51797183 is a prime.

It is a super-2 number, since 2×51797311² = 5365922853661442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51797341) 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, 35611 + ... + 37036.

It is an arithmetic number, because the mean of its divisors is an integer number (6974208).

Almost surely, 2^51797311 is an apocalyptic number.

51797311 is a deficient number, since it is larger than the sum of its proper divisors (3996353).

51797311 is a wasteful number, since it uses less digits than its factorization.

51797311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72701.

The product of its digits is 6615, while the sum is 34.

The square root of 51797311 is about 7197.0348755581. The cubic root of 51797311 is about 372.7655233418.

The spelling of 51797311 in words is "fifty-one million, seven hundred ninety-seven thousand, three hundred eleven".