51873925 has 6 divisors (see below), whose sum is σ = 64323698. Its totient is φ = 41499120.

The previous prime is 51873923. The next prime is 51873929. The reversal of 51873925 is 52937815.

It can be written as a sum of positive squares in 3 ways, for example, as 3682561 + 48191364 = 1919^2 + 6942^2 .

It is not a de Polignac number, because 51873925 - 2¹ = 51873923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51873923) 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 5 ways as a sum of consecutive naturals, for example, 1037454 + ... + 1037503.

Almost surely, 2^51873925 is an apocalyptic number.

It is an amenable number.

51873925 is a deficient number, since it is larger than the sum of its proper divisors (12449773).

51873925 is a wasteful number, since it uses less digits than its factorization.

51873925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074967 (or 2074962 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 51873925 is about 7202.3555174679. The cubic root of 51873925 is about 372.9492200636.

The spelling of 51873925 in words is "fifty-one million, eight hundred seventy-three thousand, nine hundred twenty-five".