5259921 has 8 divisors (see below), whose sum is σ = 7035744. Its totient is φ = 3495360.

The previous prime is 5259913. The next prime is 5259923. The reversal of 5259921 is 1299525.

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

It is not a de Polignac number, because 5259921 - 2³ = 5259913 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 5⁷ + 2¹² + 5⁸ + 9 + 9⁷ + 2¹² + 1 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5259923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656 + ... + 3641.

It is an arithmetic number, because the mean of its divisors is an integer number (879468).

Almost surely, 2^5259921 is an apocalyptic number.

It is an amenable number.

5259921 is a deficient number, since it is larger than the sum of its proper divisors (1775823).

5259921 is a wasteful number, since it uses less digits than its factorization.

5259921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its digits is 8100, while the sum is 33.

The square root of 5259921 is about 2293.4517653528. The cubic root of 5259921 is about 173.9107416425.

The spelling of 5259921 in words is "five million, two hundred fifty-nine thousand, nine hundred twenty-one".