51512266 has 32 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 22688640.

The previous prime is 51512233. The next prime is 51512267. The reversal of 51512266 is 66221515.

It is not an unprimeable number, because it can be changed into a prime (51512267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63270 + ... + 64078.

It is an arithmetic number, because the mean of its divisors is an integer number (2721600).

Almost surely, 2^51512266 is an apocalyptic number.

51512266 is a deficient number, since it is larger than the sum of its proper divisors (35578934).

51512266 is a wasteful number, since it uses less digits than its factorization.

51512266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934.

The product of its digits is 3600, while the sum is 28.

The square root of 51512266 is about 7177.2046090383. The cubic root of 51512266 is about 372.0804784065.

The spelling of 51512266 in words is "fifty-one million, five hundred twelve thousand, two hundred sixty-six".