51726395 has 8 divisors (see below), whose sum is σ = 70939104. Its totient is φ = 35469504.

The previous prime is 51726349. The next prime is 51726419. The reversal of 51726395 is 59362715.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-51726395 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 738914 + ... + 738983.

It is an arithmetic number, because the mean of its divisors is an integer number (8867388).

Almost surely, 2^51726395 is an apocalyptic number.

51726395 is a deficient number, since it is larger than the sum of its proper divisors (19212709).

51726395 is a wasteful number, since it uses less digits than its factorization.

51726395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477909.

The product of its digits is 56700, while the sum is 38.

The square root of 51726395 is about 7192.1064369210. The cubic root of 51726395 is about 372.5953271633.

The spelling of 51726395 in words is "fifty-one million, seven hundred twenty-six thousand, three hundred ninety-five".