51774823 has 4 divisors (see below), whose sum is σ = 51789528. Its totient is φ = 51760120.

The previous prime is 51774769. The next prime is 51774851. The reversal of 51774823 is 32847715.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32847715 = 5 ⋅6569543.

It is a cyclic number.

It is not a de Polignac number, because 51774823 - 2²¹ = 49677671 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 (51774883) 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, 1413 + ... + 10273.

It is an arithmetic number, because the mean of its divisors is an integer number (12947382).

Almost surely, 2^51774823 is an apocalyptic number.

51774823 is a deficient number, since it is larger than the sum of its proper divisors (14705).

51774823 is an equidigital number, since it uses as much as digits as its factorization.

51774823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14704.

The product of its digits is 47040, while the sum is 37.

The square root of 51774823 is about 7195.4723958890. The cubic root of 51774823 is about 372.7115696754.

It can be divided in two parts, 5177 and 4823, that added together give a 4-th power (10000 = 10⁴).

The spelling of 51774823 in words is "fifty-one million, seven hundred seventy-four thousand, eight hundred twenty-three".