51153225 has 24 divisors (see below), whose sum is σ = 89027040. Its totient is φ = 25845120.

The previous prime is 51153163. The next prime is 51153239. The reversal of 51153225 is 52235115.

It is a happy number.

It is not a de Polignac number, because 51153225 - 2⁶ = 51153161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51153195 and 51153204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16524 + ... + 19373.

It is an arithmetic number, because the mean of its divisors is an integer number (3709460).

Almost surely, 2^51153225 is an apocalyptic number.

It is an amenable number.

51153225 is a deficient number, since it is larger than the sum of its proper divisors (37873815).

51153225 is a wasteful number, since it uses less digits than its factorization.

51153225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35929 (or 35924 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 51153225 is about 7152.1482786643. The cubic root of 51153225 is about 371.2139939459.

The spelling of 51153225 in words is "fifty-one million, one hundred fifty-three thousand, two hundred twenty-five".