51162275 has 12 divisors (see below), whose sum is σ = 63696072. Its totient is φ = 40765440.

The previous prime is 51162271. The next prime is 51162323. The reversal of 51162275 is 57226115.

It is not a de Polignac number, because 51162275 - 2² = 51162271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51162271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2444 + ... + 10406.

It is an arithmetic number, because the mean of its divisors is an integer number (5308006).

Almost surely, 2^51162275 is an apocalyptic number.

51162275 is a deficient number, since it is larger than the sum of its proper divisors (12533797).

51162275 is a wasteful number, since it uses less digits than its factorization.

51162275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230 (or 8225 counting only the distinct ones).

The product of its digits is 4200, while the sum is 29.

The square root of 51162275 is about 7152.7809277231. The cubic root of 51162275 is about 371.2358843125.

The spelling of 51162275 in words is "fifty-one million, one hundred sixty-two thousand, two hundred seventy-five".