51485794 has 16 divisors (see below), whose sum is σ = 78059520. Its totient is φ = 25467840.

The previous prime is 51485783. The next prime is 51485803. The reversal of 51485794 is 49758415.

51485794 = T₇ + T₈ + ... + T₆₇₅.

It is a self number, because there is not a number n which added to its sum of digits gives 51485794.

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 7 ways as a sum of consecutive naturals, for example, 107247 + ... + 107725.

It is an arithmetic number, because the mean of its divisors is an integer number (4878720).

Almost surely, 2^51485794 is an apocalyptic number.

51485794 is a deficient number, since it is larger than the sum of its proper divisors (26573726).

51485794 is a wasteful number, since it uses less digits than its factorization.

51485794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945.

The product of its digits is 201600, while the sum is 43.

The square root of 51485794 is about 7175.3602000178. The cubic root of 51485794 is about 372.0167304689.

The spelling of 51485794 in words is "fifty-one million, four hundred eighty-five thousand, seven hundred ninety-four".