51955715 has 8 divisors (see below), whose sum is σ = 71253600. Its totient is φ = 35626752.

The previous prime is 51955711. The next prime is 51955751. The reversal of 51955715 is 51755915.

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

It is not a de Polignac number, because 51955715 - 2² = 51955711 is a prime.

It is a super-2 number, since 2×51955715² = 5398792642322450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51955711) 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, 742190 + ... + 742259.

It is an arithmetic number, because the mean of its divisors is an integer number (8906700).

Almost surely, 2^51955715 is an apocalyptic number.

51955715 is a deficient number, since it is larger than the sum of its proper divisors (19297885).

51955715 is a wasteful number, since it uses less digits than its factorization.

51955715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484461.

The product of its digits is 39375, while the sum is 38.

The square root of 51955715 is about 7208.0312846158. The cubic root of 51955715 is about 373.1451277316.

The spelling of 51955715 in words is "fifty-one million, nine hundred fifty-five thousand, seven hundred fifteen".