51258713 has 8 divisors (see below), whose sum is σ = 58861920. Its totient is φ = 44146080.

The previous prime is 51258703. The next prime is 51258731. The reversal of 51258713 is 31785215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51258713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51258713.

It is not an unprimeable number, because it can be changed into a prime (51258703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122420 + ... + 122837.

It is an arithmetic number, because the mean of its divisors is an integer number (7357740).

Almost surely, 2^51258713 is an apocalyptic number.

It is an amenable number.

51258713 is a deficient number, since it is larger than the sum of its proper divisors (7603207).

51258713 is a wasteful number, since it uses less digits than its factorization.

51258713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245287.

The product of its digits is 8400, while the sum is 32.

The square root of 51258713 is about 7159.5190480925. The cubic root of 51258713 is about 371.4689908042.

The spelling of 51258713 in words is "fifty-one million, two hundred fifty-eight thousand, seven hundred thirteen".