51774939 has 6 divisors (see below), whose sum is σ = 74786036. Its totient is φ = 34516620.

The previous prime is 51774913. The next prime is 51774953. The reversal of 51774939 is 93947715.

51774939 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 51774939 - 2²¹ = 49677787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51774894 and 51774903.

It is not an unprimeable number, because it can be changed into a prime (51774959) 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 5 ways as a sum of consecutive naturals, for example, 2876377 + ... + 2876394.

Almost surely, 2^51774939 is an apocalyptic number.

51774939 is a deficient number, since it is larger than the sum of its proper divisors (23011097).

51774939 is a wasteful number, since it uses less digits than its factorization.

51774939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5752777 (or 5752774 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 51774939 is about 7195.4804565088. The cubic root of 51774939 is about 372.7118480250.

The spelling of 51774939 in words is "fifty-one million, seven hundred seventy-four thousand, nine hundred thirty-nine".