51795823 has 4 divisors (see below), whose sum is σ = 53466688. Its totient is φ = 50124960.

The previous prime is 51795817. The next prime is 51795829. The reversal of 51795823 is 32859715.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51795817) and next prime (51795829).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51795823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51795829) 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, 835386 + ... + 835447.

It is an arithmetic number, because the mean of its divisors is an integer number (13366672).

Almost surely, 2^51795823 is an apocalyptic number.

51795823 is a deficient number, since it is larger than the sum of its proper divisors (1670865).

51795823 is a wasteful number, since it uses less digits than its factorization.

51795823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670864.

The product of its digits is 75600, while the sum is 40.

The square root of 51795823 is about 7196.9314989098. The cubic root of 51795823 is about 372.7619537845.

The spelling of 51795823 in words is "fifty-one million, seven hundred ninety-five thousand, eight hundred twenty-three".