51277893 has 16 divisors (see below), whose sum is σ = 71719680. Its totient is φ = 32550336.

The previous prime is 51277883. The next prime is 51277957. The reversal of 51277893 is 39877215.

It is not a de Polignac number, because 51277893 - 2⁹ = 51277381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51277883) 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 15 ways as a sum of consecutive naturals, for example, 303 + ... + 10131.

It is an arithmetic number, because the mean of its divisors is an integer number (4482480).

Almost surely, 2^51277893 is an apocalyptic number.

It is an amenable number.

51277893 is a deficient number, since it is larger than the sum of its proper divisors (20441787).

51277893 is a wasteful number, since it uses less digits than its factorization.

51277893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916.

The product of its digits is 105840, while the sum is 42.

The square root of 51277893 is about 7160.8583982648. The cubic root of 51277893 is about 371.5153171512.

The spelling of 51277893 in words is "fifty-one million, two hundred seventy-seven thousand, eight hundred ninety-three".