51713507 has 4 divisors (see below), whose sum is σ = 54755496. Its totient is φ = 48671520.

The previous prime is 51713503. The next prime is 51713509. The reversal of 51713507 is 70531715.

51713507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51713507 - 2² = 51713503 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 51713507.

It is not an unprimeable number, because it can be changed into a prime (51713503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520969 + ... + 1521002.

It is an arithmetic number, because the mean of its divisors is an integer number (13688874).

Almost surely, 2^51713507 is an apocalyptic number.

51713507 is a deficient number, since it is larger than the sum of its proper divisors (3041989).

51713507 is a wasteful number, since it uses less digits than its factorization.

51713507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041988.

The product of its (nonzero) digits is 3675, while the sum is 29.

The square root of 51713507 is about 7191.2103988133. The cubic root of 51713507 is about 372.5643796657.

The spelling of 51713507 in words is "fifty-one million, seven hundred thirteen thousand, five hundred seven".