5280991 has 4 divisors (see below), whose sum is σ = 5286400. Its totient is φ = 5275584.

The previous prime is 5280983. The next prime is 5281019. The reversal of 5280991 is 1990825.

5280991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, 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 5280991 - 2³ = 5280983 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 (5280901) 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, 786 + ... + 3343.

It is an arithmetic number, because the mean of its divisors is an integer number (1321600).

Almost surely, 2^5280991 is an apocalyptic number.

5280991 is a deficient number, since it is larger than the sum of its proper divisors (5409).

5280991 is a wasteful number, since it uses less digits than its factorization.

5280991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 5280991 is about 2298.0406871942. The cubic root of 5280991 is about 174.1426473697.

It can be divided in two parts, 52809 and 91, that added together give a square (52900 = 230²).

The spelling of 5280991 in words is "five million, two hundred eighty thousand, nine hundred ninety-one".