51712997 has 8 divisors (see below), whose sum is σ = 62577216. Its totient is φ = 41717952.

The previous prime is 51712957. The next prime is 51713021. The reversal of 51712997 is 79921715.

It is a happy number.

51712997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51712997 - 2⁸ = 51712741 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 (51712937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217163 + ... + 217400.

It is an arithmetic number, because the mean of its divisors is an integer number (7822152).

Almost surely, 2^51712997 is an apocalyptic number.

It is an amenable number.

51712997 is a deficient number, since it is larger than the sum of its proper divisors (10864219).

51712997 is a wasteful number, since it uses less digits than its factorization.

51712997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434587.

The product of its digits is 39690, while the sum is 41.

The square root of 51712997 is about 7191.1749387704. The cubic root of 51712997 is about 372.5631549151.

The spelling of 51712997 in words is "fifty-one million, seven hundred twelve thousand, nine hundred ninety-seven".