51944387 has 8 divisors (see below), whose sum is σ = 57984960. Its totient is φ = 46123560.

The previous prime is 51944383. The next prime is 51944393. The reversal of 51944387 is 78344915.

51944387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51944387 - 2² = 51944383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51944383) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 54437 + ... + 55382.

It is an arithmetic number, because the mean of its divisors is an integer number (7248120).

Almost surely, 2^51944387 is an apocalyptic number.

51944387 is a deficient number, since it is larger than the sum of its proper divisors (6040573).

51944387 is a wasteful number, since it uses less digits than its factorization.

51944387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109873.

The product of its digits is 120960, while the sum is 41.

The square root of 51944387 is about 7207.2454516271. The cubic root of 51944387 is about 373.1180065878.

The spelling of 51944387 in words is "fifty-one million, nine hundred forty-four thousand, three hundred eighty-seven".