51137528 has 16 divisors (see below), whose sum is σ = 103258680. Its totient is φ = 23601888.

The previous prime is 51137521. The next prime is 51137563. The reversal of 51137528 is 82573115.

51137528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51137494 and 51137503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51137521) 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, 245750 + ... + 245957.

Almost surely, 2^51137528 is an apocalyptic number.

It is an amenable number.

51137528 is an abundant number, since it is smaller than the sum of its proper divisors (52121152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51137528 is a wasteful number, since it uses less digits than its factorization.

51137528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491726 (or 491722 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 51137528 is about 7151.0508318708. The cubic root of 51137528 is about 371.1760195257.

The spelling of 51137528 in words is "fifty-one million, one hundred thirty-seven thousand, five hundred twenty-eight".