51676918 has 4 divisors (see below), whose sum is σ = 77515380. Its totient is φ = 25838458.

The previous prime is 51676909. The next prime is 51676921. The reversal of 51676918 is 81967615.

It is a happy number.

51676918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 12919228 + ... + 12919231.

It is an arithmetic number, because the mean of its divisors is an integer number (19378845).

Almost surely, 2^51676918 is an apocalyptic number.

51676918 is a deficient number, since it is larger than the sum of its proper divisors (25838462).

51676918 is a wasteful number, since it uses less digits than its factorization.

51676918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25838461.

The product of its digits is 90720, while the sum is 43.

The square root of 51676918 is about 7188.6659402145. The cubic root of 51676918 is about 372.4764917675.

The spelling of 51676918 in words is "fifty-one million, six hundred seventy-six thousand, nine hundred eighteen".