5259981 has 8 divisors (see below), whose sum is σ = 7036704. Its totient is φ = 3494960.

The previous prime is 5259977. The next prime is 5259983. The reversal of 5259981 is 1899525.

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

It is a cyclic number.

It is not a de Polignac number, because 5259981 - 2² = 5259977 is a prime.

It is a super-2 number, since 2×5259981² = 55334800240722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5259983) 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, 1815 + ... + 3716.

It is an arithmetic number, because the mean of its divisors is an integer number (879588).

Almost surely, 2^5259981 is an apocalyptic number.

It is an amenable number.

5259981 is a deficient number, since it is larger than the sum of its proper divisors (1776723).

5259981 is a wasteful number, since it uses less digits than its factorization.

5259981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5851.

The product of its digits is 32400, while the sum is 39.

The square root of 5259981 is about 2293.4648460354. The cubic root of 5259981 is about 173.9114029075.

The spelling of 5259981 in words is "five million, two hundred fifty-nine thousand, nine hundred eighty-one".