51255472713 has 4 divisors (see below), whose sum is σ = 68340630288. Its totient is φ = 34170315140.

The previous prime is 51255472679. The next prime is 51255472769. The reversal of 51255472713 is 31727455215.

It is a happy number.

51255472713 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51255472713 - 2⁶ = 51255472649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51255471713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8542578783 + ... + 8542578788.

It is an arithmetic number, because the mean of its divisors is an integer number (17085157572).

Almost surely, 2^51255472713 is an apocalyptic number.

It is an amenable number.

51255472713 is a deficient number, since it is larger than the sum of its proper divisors (17085157575).

51255472713 is a wasteful number, since it uses less digits than its factorization.

51255472713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17085157574.

The product of its digits is 294000, while the sum is 42.

The spelling of 51255472713 in words is "fifty-one billion, two hundred fifty-five million, four hundred seventy-two thousand, seven hundred thirteen".