51944129 has 8 divisors (see below), whose sum is σ = 56279520. Its totient is φ = 47750976.

The previous prime is 51944117. The next prime is 51944147. The reversal of 51944129 is 92144915.

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 51944129 - 2²⁴ = 35166913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51944029) 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 7 ways as a sum of consecutive naturals, for example, 34799 + ... + 36260.

It is an arithmetic number, because the mean of its divisors is an integer number (7034940).

Almost surely, 2^51944129 is an apocalyptic number.

It is an amenable number.

51944129 is a deficient number, since it is larger than the sum of its proper divisors (4335391).

51944129 is a wasteful number, since it uses less digits than its factorization.

51944129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71119.

The product of its digits is 12960, while the sum is 35.

The square root of 51944129 is about 7207.2275529499. The cubic root of 51944129 is about 373.1173888463.

The spelling of 51944129 in words is "fifty-one million, nine hundred forty-four thousand, one hundred twenty-nine".