51271768 has 32 divisors (see below), whose sum is σ = 102672000. Its totient is φ = 23950080.

The previous prime is 51271733. The next prime is 51271789. The reversal of 51271768 is 86717215.

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 7 ways as a sum of consecutive naturals, for example, 3628 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (3208500).

Almost surely, 2^51271768 is an apocalyptic number.

51271768 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51271768 is an abundant number, since it is smaller than the sum of its proper divisors (51400232).

51271768 is a wasteful number, since it uses less digits than its factorization.

51271768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195 (or 7191 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 51271768 is about 7160.4307133021. The cubic root of 51271768 is about 371.5005244092.

The spelling of 51271768 in words is "fifty-one million, two hundred seventy-one thousand, seven hundred sixty-eight".