51004725 has 24 divisors (see below), whose sum is σ = 84836832. Its totient is φ = 27038400.

The previous prime is 51004717. The next prime is 51004739. The reversal of 51004725 is 52740015.

It is not a de Polignac number, because 51004725 - 2³ = 51004717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51004695 and 51004704.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 11010 + ... + 14940.

It is an arithmetic number, because the mean of its divisors is an integer number (3534868).

Almost surely, 2^51004725 is an apocalyptic number.

It is an amenable number.

51004725 is a deficient number, since it is larger than the sum of its proper divisors (33832107).

51004725 is a wasteful number, since it uses less digits than its factorization.

51004725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4112 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 51004725 is about 7141.7592370508. The cubic root of 51004725 is about 370.8544290767.

The spelling of 51004725 in words is "fifty-one million, four thousand, seven hundred twenty-five".