51812774 has 16 divisors (see below), whose sum is σ = 84641760. Its totient is φ = 23643840.

The previous prime is 51812771. The next prime is 51812777. The reversal of 51812774 is 47721815.

51812774 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51812771) and next prime (51812777).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51812771) 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 7 ways as a sum of consecutive naturals, for example, 8882 + ... + 13509.

It is an arithmetic number, because the mean of its divisors is an integer number (5290110).

Almost surely, 2^51812774 is an apocalyptic number.

51812774 is a deficient number, since it is larger than the sum of its proper divisors (32828986).

51812774 is a wasteful number, since it uses less digits than its factorization.

51812774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22495.

The product of its digits is 15680, while the sum is 35.

The square root of 51812774 is about 7198.1090572455. The cubic root of 51812774 is about 372.8026134255.

The spelling of 51812774 in words is "fifty-one million, eight hundred twelve thousand, seven hundred seventy-four".