51275418 has 16 divisors (see below), whose sum is σ = 107009856. Its totient is φ = 16348640.

The previous prime is 51275387. The next prime is 51275423. The reversal of 51275418 is 81457215.

51275418 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 185643 + ... + 185918.

It is an arithmetic number, because the mean of its divisors is an integer number (6688116).

Almost surely, 2^51275418 is an apocalyptic number.

51275418 is an abundant number, since it is smaller than the sum of its proper divisors (55734438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51275418 is a wasteful number, since it uses less digits than its factorization.

51275418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371589.

The product of its digits is 11200, while the sum is 33.

The square root of 51275418 is about 7160.6855817024. The cubic root of 51275418 is about 371.5093398177.

The spelling of 51275418 in words is "fifty-one million, two hundred seventy-five thousand, four hundred eighteen".