51127868 has 12 divisors (see below), whose sum is σ = 97607832. Its totient is φ = 23239920.

The previous prime is 51127801. The next prime is 51127877. The reversal of 51127868 is 86872115.

It is a super-2 number, since 2×51127868² = 5228117772450848, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 580955 + ... + 581042.

It is an arithmetic number, because the mean of its divisors is an integer number (8133986).

Almost surely, 2^51127868 is an apocalyptic number.

It is an amenable number.

51127868 is a deficient number, since it is larger than the sum of its proper divisors (46479964).

51127868 is a wasteful number, since it uses less digits than its factorization.

51127868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162012 (or 1162010 counting only the distinct ones).

The product of its digits is 26880, while the sum is 38.

The square root of 51127868 is about 7150.3753747618. The cubic root of 51127868 is about 371.1526460445.

The spelling of 51127868 in words is "fifty-one million, one hundred twenty-seven thousand, eight hundred sixty-eight".