5265989 has 4 divisors (see below), whose sum is σ = 5271360. Its totient is φ = 5260620.

The previous prime is 5265979. The next prime is 5266013. The reversal of 5265989 is 9895625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5265989 - 2⁴ = 5265973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5265929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749 + ... + 3330.

It is an arithmetic number, because the mean of its divisors is an integer number (1317840).

Almost surely, 2^5265989 is an apocalyptic number.

It is an amenable number.

5265989 is a deficient number, since it is larger than the sum of its proper divisors (5371).

5265989 is a wasteful number, since it uses less digits than its factorization.

5265989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5370.

The product of its digits is 194400, while the sum is 44.

The square root of 5265989 is about 2294.7742808390. The cubic root of 5265989 is about 173.9775921292.

The spelling of 5265989 in words is "five million, two hundred sixty-five thousand, nine hundred eighty-nine".