51087525 has 12 divisors (see below), whose sum is σ = 84464832. Its totient is φ = 27246640.

The previous prime is 51087497. The next prime is 51087527. The reversal of 51087525 is 52578015.

It is a happy number.

It is not a de Polignac number, because 51087525 - 2⁶ = 51087461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51087527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340509 + ... + 340658.

It is an arithmetic number, because the mean of its divisors is an integer number (7038736).

Almost surely, 2^51087525 is an apocalyptic number.

It is an amenable number.

51087525 is a deficient number, since it is larger than the sum of its proper divisors (33377307).

51087525 is a wasteful number, since it uses less digits than its factorization.

51087525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681180 (or 681175 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 51087525 is about 7147.5537773423. The cubic root of 51087525 is about 371.0549996804.

The spelling of 51087525 in words is "fifty-one million, eighty-seven thousand, five hundred twenty-five".