51088225 has 12 divisors (see below), whose sum is σ = 64063980. Its totient is φ = 40409600.

The previous prime is 51088187. The next prime is 51088241. The reversal of 51088225 is 52288015.

It can be written as a sum of positive squares in 6 ways, for example, as 2214144 + 48874081 = 1488^2 + 6991^2 .

It is not a de Polignac number, because 51088225 - 2⁷ = 51088097 is a prime.

It is a super-2 number, since 2×51088225² = 5220013467301250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9256 + ... + 13705.

It is an arithmetic number, because the mean of its divisors is an integer number (5338665).

Almost surely, 2^51088225 is an apocalyptic number.

It is an amenable number.

51088225 is a deficient number, since it is larger than the sum of its proper divisors (12975755).

51088225 is a wasteful number, since it uses less digits than its factorization.

51088225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23060 (or 23055 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 51088225 is about 7147.6027449768. The cubic root of 51088225 is about 371.0566944015.

The spelling of 51088225 in words is "fifty-one million, eighty-eight thousand, two hundred twenty-five".