51625492 has 12 divisors (see below), whose sum is σ = 90410740. Its totient is φ = 25793856.

The previous prime is 51625477. The next prime is 51625493. The reversal of 51625492 is 29452615.

It is a happy number.

51625492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 28238596 = 4836^2 + 5314^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51625493) by changing a digit.

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, 2734 + ... + 10522.

Almost surely, 2^51625492 is an apocalyptic number.

It is an amenable number.

51625492 is a deficient number, since it is larger than the sum of its proper divisors (38785248).

51625492 is a wasteful number, since it uses less digits than its factorization.

51625492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9450 (or 9448 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 51625492 is about 7185.0881692572. The cubic root of 51625492 is about 372.3528947838.

The spelling of 51625492 in words is "fifty-one million, six hundred twenty-five thousand, four hundred ninety-two".