51775255 has 16 divisors (see below), whose sum is σ = 72069120. Its totient is φ = 34971552.

The previous prime is 51775249. The next prime is 51775271. The reversal of 51775255 is 55257715.

It is a happy number.

It is not a de Polignac number, because 51775255 - 2¹⁵ = 51742487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8695 + ... + 13384.

It is an arithmetic number, because the mean of its divisors is an integer number (4504320).

Almost surely, 2^51775255 is an apocalyptic number.

51775255 is a deficient number, since it is larger than the sum of its proper divisors (20293865).

51775255 is a wasteful number, since it uses less digits than its factorization.

51775255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22158.

The product of its digits is 61250, while the sum is 37.

The square root of 51775255 is about 7195.5024147032. The cubic root of 51775255 is about 372.7126062857.

The spelling of 51775255 in words is "fifty-one million, seven hundred seventy-five thousand, two hundred fifty-five".