51425252 has 12 divisors (see below), whose sum is σ = 90182400. Its totient is φ = 25658856.

The previous prime is 51425243. The next prime is 51425273. The reversal of 51425252 is 25252415.

51425252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11252 + ... + 15147.

It is an arithmetic number, because the mean of its divisors is an integer number (7515200).

Almost surely, 2^51425252 is an apocalyptic number.

It is an amenable number.

51425252 is a deficient number, since it is larger than the sum of its proper divisors (38757148).

51425252 is a wasteful number, since it uses less digits than its factorization.

51425252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26890 (or 26888 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 51425252 is about 7171.1402161720. The cubic root of 51425252 is about 371.8708554678.

Adding to 51425252 its reverse (25252415), we get a palindrome (76677667).

The spelling of 51425252 in words is "fifty-one million, four hundred twenty-five thousand, two hundred fifty-two".