51787874 has 8 divisors (see below), whose sum is σ = 77837760. Its totient is φ = 25841956.

The previous prime is 51787873. The next prime is 51787877. The reversal of 51787874 is 47878715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51787873) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24734 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (9729720).

Almost surely, 2^51787874 is an apocalyptic number.

51787874 is a deficient number, since it is larger than the sum of its proper divisors (26049886).

51787874 is a wasteful number, since it uses less digits than its factorization.

51787874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51984.

The product of its digits is 439040, while the sum is 47.

The square root of 51787874 is about 7196.3792284732. The cubic root of 51787874 is about 372.7428838016.

The spelling of 51787874 in words is "fifty-one million, seven hundred eighty-seven thousand, eight hundred seventy-four".