51168797 has 8 divisors (see below), whose sum is σ = 52462944. Its totient is φ = 49886928.

The previous prime is 51168781. The next prime is 51168809. The reversal of 51168797 is 79786115.

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 51168797 - 2⁴ = 51168781 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 (51168707) 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, 5678 + ... + 11600.

It is an arithmetic number, because the mean of its divisors is an integer number (6557868).

Almost surely, 2^51168797 is an apocalyptic number.

It is an amenable number.

51168797 is a deficient number, since it is larger than the sum of its proper divisors (1294147).

51168797 is a wasteful number, since it uses less digits than its factorization.

51168797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6139.

The product of its digits is 105840, while the sum is 44.

The square root of 51168797 is about 7153.2368197900. The cubic root of 51168797 is about 371.2516582890.

The spelling of 51168797 in words is "fifty-one million, one hundred sixty-eight thousand, seven hundred ninety-seven".