51433764 has 12 divisors (see below), whose sum is σ = 120012144. Its totient is φ = 17144584.

The previous prime is 51433751. The next prime is 51433769. The reversal of 51433764 is 46733415.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (51433769) 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, 2143062 + ... + 2143085.

It is an arithmetic number, because the mean of its divisors is an integer number (10001012).

Almost surely, 2^51433764 is an apocalyptic number.

It is an amenable number.

51433764 is an abundant number, since it is smaller than the sum of its proper divisors (68578380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51433764 is a wasteful number, since it uses less digits than its factorization.

51433764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286154 (or 4286152 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 51433764 is about 7171.7336816142. The cubic root of 51433764 is about 371.8913719130.

The spelling of 51433764 in words is "fifty-one million, four hundred thirty-three thousand, seven hundred sixty-four".