5220981 has 12 divisors (see below), whose sum is σ = 7725900. Its totient is φ = 3395520.

The previous prime is 5220973. The next prime is 5220983. The reversal of 5220981 is 1890225.

It can be written as a sum of positive squares in 2 ways, for example, as 2528100 + 2692881 = 1590^2 + 1641^2 .

It is not a de Polignac number, because 5220981 - 2³ = 5220973 is a prime.

It is a super-2 number, since 2×5220981² = 54517285204722, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5220983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6706 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (643825).

Almost surely, 2^5220981 is an apocalyptic number.

It is an amenable number.

5220981 is a deficient number, since it is larger than the sum of its proper divisors (2504919).

5220981 is a wasteful number, since it uses less digits than its factorization.

5220981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14196 (or 14193 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 5220981 is about 2284.9466076913. The cubic root of 5220981 is about 173.4805156027.

The spelling of 5220981 in words is "five million, two hundred twenty thousand, nine hundred eighty-one".