51097173 has 8 divisors (see below), whose sum is σ = 68227200. Its totient is φ = 34015968.

The previous prime is 51097169. The next prime is 51097177. The reversal of 51097173 is 37179015.

It is an interprime number because it is at equal distance from previous prime (51097169) and next prime (51097177).

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

It is not a de Polignac number, because 51097173 - 2² = 51097169 is a prime.

It is a super-2 number, since 2×51097173² = 5221842177183858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51097177) 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, 9688 + ... + 14001.

It is an arithmetic number, because the mean of its divisors is an integer number (8528400).

Almost surely, 2^51097173 is an apocalyptic number.

It is an amenable number.

51097173 is a deficient number, since it is larger than the sum of its proper divisors (17130027).

51097173 is a wasteful number, since it uses less digits than its factorization.

51097173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24411.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 51097173 is about 7148.2286617035. The cubic root of 51097173 is about 371.0783564151.

The spelling of 51097173 in words is "fifty-one million, ninety-seven thousand, one hundred seventy-three".