51093173 has 8 divisors (see below), whose sum is σ = 52451256. Its totient is φ = 49752000.

The previous prime is 51093169. The next prime is 51093187. The reversal of 51093173 is 37139015.

It can be written as a sum of positive squares in 4 ways, for example, as 2748964 + 48344209 = 1658^2 + 6953^2 .

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 51093173 - 2² = 51093169 is a prime.

It is a super-2 number, since 2×51093173² = 5221024654415858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51093193) 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, 2015 + ... + 10307.

It is an arithmetic number, because the mean of its divisors is an integer number (6556407).

Almost surely, 2^51093173 is an apocalyptic number.

It is an amenable number.

51093173 is a deficient number, since it is larger than the sum of its proper divisors (1358083).

51093173 is a wasteful number, since it uses less digits than its factorization.

51093173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 51093173 is about 7147.9488666330. The cubic root of 51093173 is about 371.0686732169.

The spelling of 51093173 in words is "fifty-one million, ninety-three thousand, one hundred seventy-three".