51739794 has 24 divisors (see below), whose sum is σ = 113365980. Its totient is φ = 17052288.

The previous prime is 51739783. The next prime is 51739817. The reversal of 51739794 is 49793715.

51739794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50765625 + 974169 = 7125^2 + 987^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14547 + ... + 17750.

Almost surely, 2^51739794 is an apocalyptic number.

51739794 is an abundant number, since it is smaller than the sum of its proper divisors (61626186).

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

51739794 is a wasteful number, since it uses less digits than its factorization.

51739794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32394 (or 32391 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 51739794 is about 7193.0378839542. The cubic root of 51739794 is about 372.6274962572.

The spelling of 51739794 in words is "fifty-one million, seven hundred thirty-nine thousand, seven hundred ninety-four".