51143774 has 16 divisors (see below), whose sum is σ = 84522096. Its totient is φ = 23016000.

The previous prime is 51143773. The next prime is 51143777. The reversal of 51143774 is 47734115.

It is a self number, because there is not a number n which added to its sum of digits gives 51143774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51143773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9287 + ... + 13730.

It is an arithmetic number, because the mean of its divisors is an integer number (5282631).

Almost surely, 2^51143774 is an apocalyptic number.

51143774 is a deficient number, since it is larger than the sum of its proper divisors (33378322).

51143774 is a wasteful number, since it uses less digits than its factorization.

51143774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23131.

The product of its digits is 11760, while the sum is 32.

The square root of 51143774 is about 7151.4875375687. The cubic root of 51143774 is about 371.1911308743.

Adding to 51143774 its reverse (47734115), we get a palindrome (98877889).

It can be divided in two parts, 5114 and 3774, that added together give a palindrome (8888).

The spelling of 51143774 in words is "fifty-one million, one hundred forty-three thousand, seven hundred seventy-four".