51514725 has 12 divisors (see below), whose sum is σ = 85171136. Its totient is φ = 27474480.

The previous prime is 51514721. The next prime is 51514739. The reversal of 51514725 is 52741515.

It is not a de Polignac number, because 51514725 - 2² = 51514721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51514692 and 51514701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51514721) 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, 343357 + ... + 343506.

Almost surely, 2^51514725 is an apocalyptic number.

It is an amenable number.

51514725 is a deficient number, since it is larger than the sum of its proper divisors (33656411).

51514725 is a wasteful number, since it uses less digits than its factorization.

51514725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686876 (or 686871 counting only the distinct ones).

The product of its digits is 7000, while the sum is 30.

The square root of 51514725 is about 7177.3759132429. The cubic root of 51514725 is about 372.0863988820.

The spelling of 51514725 in words is "fifty-one million, five hundred fourteen thousand, seven hundred twenty-five".