51724311703 has 4 divisors (see below), whose sum is σ = 51815216160. Its totient is φ = 51633407248.

The previous prime is 51724311697. The next prime is 51724311763. The reversal of 51724311703 is 30711342715.

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 51724311703 - 2⁵ = 51724311671 is a prime.

It is a super-3 number, since 3×51724311703³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51724311763) 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, 45451375 + ... + 45452512.

It is an arithmetic number, because the mean of its divisors is an integer number (12953804040).

Almost surely, 2^51724311703 is an apocalyptic number.

51724311703 is a deficient number, since it is larger than the sum of its proper divisors (90904457).

51724311703 is an equidigital number, since it uses as much as digits as its factorization.

51724311703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90904456.

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 51724311703 in words is "fifty-one billion, seven hundred twenty-four million, three hundred eleven thousand, seven hundred three".