51878325 has 24 divisors (see below), whose sum is σ = 87869376. Its totient is φ = 26992000.

The previous prime is 51878297. The next prime is 51878369. The reversal of 51878325 is 52387815.

It is not a de Polignac number, because 51878325 - 2⁸ = 51878069 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5361 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (3661224).

Almost surely, 2^51878325 is an apocalyptic number.

It is an amenable number.

51878325 is a deficient number, since it is larger than the sum of its proper divisors (35991051).

51878325 is a wasteful number, since it uses less digits than its factorization.

51878325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16925 (or 16920 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 51878325 is about 7202.6609666150. The cubic root of 51878325 is about 372.9597644117.

The spelling of 51878325 in words is "fifty-one million, eight hundred seventy-eight thousand, three hundred twenty-five".