51788242 has 24 divisors (see below), whose sum is σ = 85949388. Its totient is φ = 23385120.

The previous prime is 51788237. The next prime is 51788291. The reversal of 51788242 is 24288715.

51788242 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 44876601 + 6911641 = 6699^2 + 2629^2 .

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, 41248 + ... + 42484.

Almost surely, 2^51788242 is an apocalyptic number.

51788242 is a deficient number, since it is larger than the sum of its proper divisors (34161146).

51788242 is a wasteful number, since it uses less digits than its factorization.

51788242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1423 counting only the distinct ones).

The product of its digits is 35840, while the sum is 37.

The square root of 51788242 is about 7196.4047968413. The cubic root of 51788242 is about 372.7437666921.

The spelling of 51788242 in words is "fifty-one million, seven hundred eighty-eight thousand, two hundred forty-two".