51774766 has 16 divisors (see below), whose sum is σ = 80359056. Its totient is φ = 24998976.

The previous prime is 51774763. The next prime is 51774769. The reversal of 51774766 is 66747715.

It is an interprime number because it is at equal distance from previous prime (51774763) and next prime (51774769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51774763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7585 + ... + 12691.

It is an arithmetic number, because the mean of its divisors is an integer number (5022441).

Almost surely, 2^51774766 is an apocalyptic number.

51774766 is a deficient number, since it is larger than the sum of its proper divisors (28584290).

51774766 is a wasteful number, since it uses less digits than its factorization.

51774766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283.

The product of its digits is 246960, while the sum is 43.

The square root of 51774766 is about 7195.4684350638. The cubic root of 51774766 is about 372.7114329000.

It can be divided in two parts, 5 and 1774766, that added together give a palindrome (1774771).

The spelling of 51774766 in words is "fifty-one million, seven hundred seventy-four thousand, seven hundred sixty-six".