51726747 has 24 divisors (see below), whose sum is σ = 73495296. Its totient is φ = 32298288.

The previous prime is 51726739. The next prime is 51726757. The reversal of 51726747 is 74762715.

51726747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51726747 - 2³ = 51726739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51726757) 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 23 ways as a sum of consecutive naturals, for example, 309658 + ... + 309824.

It is an arithmetic number, because the mean of its divisors is an integer number (3062304).

Almost surely, 2^51726747 is an apocalyptic number.

51726747 is a deficient number, since it is larger than the sum of its proper divisors (21768549).

51726747 is a wasteful number, since it uses less digits than its factorization.

51726747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 260 counting only the distinct ones).

The product of its digits is 82320, while the sum is 39.

The square root of 51726747 is about 7192.1309081523. The cubic root of 51726747 is about 372.5961723363.

The spelling of 51726747 in words is "fifty-one million, seven hundred twenty-six thousand, seven hundred forty-seven".