51726371 has 4 divisors (see below), whose sum is σ = 51762600. Its totient is φ = 51690144.

The previous prime is 51726349. The next prime is 51726419. The reversal of 51726371 is 17362715.

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 51726371 - 2¹⁸ = 51464227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51726271) 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, 15881 + ... + 18858.

It is an arithmetic number, because the mean of its divisors is an integer number (12940650).

Almost surely, 2^51726371 is an apocalyptic number.

51726371 is a deficient number, since it is larger than the sum of its proper divisors (36229).

51726371 is a wasteful number, since it uses less digits than its factorization.

51726371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36228.

The product of its digits is 8820, while the sum is 32.

The square root of 51726371 is about 7192.1047684249. The cubic root of 51726371 is about 372.5952695377.

The spelling of 51726371 in words is "fifty-one million, seven hundred twenty-six thousand, three hundred seventy-one".