51055475 has 12 divisors (see below), whose sum is σ = 64348560. Its totient is φ = 40173600.

The previous prime is 51055441. The next prime is 51055493. The reversal of 51055475 is 57455015.

51055475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-51055475 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 15215 + ... + 18264.

It is an arithmetic number, because the mean of its divisors is an integer number (5362380).

Almost surely, 2^51055475 is an apocalyptic number.

51055475 is a deficient number, since it is larger than the sum of its proper divisors (13293085).

51055475 is a wasteful number, since it uses less digits than its factorization.

51055475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33550 (or 33545 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 51055475 is about 7145.3113997922. The cubic root of 51055475 is about 370.9773890798.

The spelling of 51055475 in words is "fifty-one million, fifty-five thousand, four hundred seventy-five".