51044399 has 8 divisors (see below), whose sum is σ = 58447488. Its totient is φ = 43669080.

The previous prime is 51044377. The next prime is 51044417. The reversal of 51044399 is 99344015.

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

It is not a de Polignac number, because 51044399 - 2⁸ = 51044143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51044309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2837 + ... + 10494.

It is an arithmetic number, because the mean of its divisors is an integer number (7305936).

Almost surely, 2^51044399 is an apocalyptic number.

51044399 is a deficient number, since it is larger than the sum of its proper divisors (7403089).

51044399 is a wasteful number, since it uses less digits than its factorization.

51044399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13885.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 51044399 is about 7144.5363040578. The cubic root of 51044399 is about 370.9505604668.

The spelling of 51044399 in words is "fifty-one million, forty-four thousand, three hundred ninety-nine".