51485796 has 36 divisors (see below), whose sum is σ = 133665532. Its totient is φ = 16697664.

The previous prime is 51485783. The next prime is 51485803. The reversal of 51485796 is 69758415.

It can be written as a sum of positive squares in 2 ways, for example, as 24860196 + 26625600 = 4986^2 + 5160^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 17995 + ... + 20658.

Almost surely, 2^51485796 is an apocalyptic number.

It is an amenable number.

51485796 is an abundant number, since it is smaller than the sum of its proper divisors (82179736).

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

51485796 is a wasteful number, since it uses less digits than its factorization.

51485796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38700 (or 38695 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 51485796 is about 7175.3603393837. The cubic root of 51485796 is about 372.0167352860.

The spelling of 51485796 in words is "fifty-one million, four hundred eighty-five thousand, seven hundred ninety-six".