51506794 has 16 divisors (see below), whose sum is σ = 78201288. Its totient is φ = 25441792.

The previous prime is 51506731. The next prime is 51506797. The reversal of 51506794 is 49760515.

It can be written as a sum of positive squares in 4 ways, for example, as 36784225 + 14722569 = 6065^2 + 3837^2 .

It is not an unprimeable number, because it can be changed into a prime (51506797) 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, 86562 + ... + 87154.

Almost surely, 2^51506794 is an apocalyptic number.

51506794 is a deficient number, since it is larger than the sum of its proper divisors (26694494).

51506794 is a wasteful number, since it uses less digits than its factorization.

51506794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 51506794 is about 7176.8233920029. The cubic root of 51506794 is about 372.0673029266.

The spelling of 51506794 in words is "fifty-one million, five hundred six thousand, seven hundred ninety-four".