51849959 has 8 divisors (see below), whose sum is σ = 60635520. Its totient is φ = 43409016.

The previous prime is 51849947. The next prime is 51849961. The reversal of 51849959 is 95994815.

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

It is not a de Polignac number, because 51849959 - 2⁴ = 51849943 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 (51849989) 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, 85829 + ... + 86430.

It is an arithmetic number, because the mean of its divisors is an integer number (7579440).

Almost surely, 2^51849959 is an apocalyptic number.

51849959 is a deficient number, since it is larger than the sum of its proper divisors (8785561).

51849959 is a wasteful number, since it uses less digits than its factorization.

51849959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172309.

The product of its digits is 583200, while the sum is 50.

The square root of 51849959 is about 7200.6915640097. The cubic root of 51849959 is about 372.8917764453.

The spelling of 51849959 in words is "fifty-one million, eight hundred forty-nine thousand, nine hundred fifty-nine".