51318275 has 6 divisors (see below), whose sum is σ = 63634692. Its totient is φ = 41054600.

The previous prime is 51318271. The next prime is 51318277. The reversal of 51318275 is 57281315.

It is not a de Polignac number, because 51318275 - 2² = 51318271 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (51318271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1026341 + ... + 1026390.

It is an arithmetic number, because the mean of its divisors is an integer number (10605782).

Almost surely, 2^51318275 is an apocalyptic number.

51318275 is a deficient number, since it is larger than the sum of its proper divisors (12316417).

51318275 is a wasteful number, since it uses less digits than its factorization.

51318275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052741 (or 2052736 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 51318275 is about 7163.6774773855. The cubic root of 51318275 is about 371.6128159248.

The spelling of 51318275 in words is "fifty-one million, three hundred eighteen thousand, two hundred seventy-five".