51718955 has 8 divisors (see below), whose sum is σ = 62110800. Its totient is φ = 41343136.

The previous prime is 51718949. The next prime is 51718957. The reversal of 51718955 is 55981715.

51718955 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 51718955 - 2⁴ = 51718939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51718957) 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, 4901 + ... + 11289.

It is an arithmetic number, because the mean of its divisors is an integer number (7763850).

Almost surely, 2^51718955 is an apocalyptic number.

51718955 is a deficient number, since it is larger than the sum of its proper divisors (10391845).

51718955 is a wasteful number, since it uses less digits than its factorization.

51718955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8013.

The product of its digits is 63000, while the sum is 41.

The square root of 51718955 is about 7191.5891845961. The cubic root of 51718955 is about 372.5774623823.

The spelling of 51718955 in words is "fifty-one million, seven hundred eighteen thousand, nine hundred fifty-five".