5523981 has 4 divisors (see below), whose sum is σ = 7365312. Its totient is φ = 3682652.

The previous prime is 5523967. The next prime is 5524027. The reversal of 5523981 is 1893255.

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.

It is a cyclic number.

It is not a de Polignac number, because 5523981 - 2¹³ = 5515789 is a prime.

It is a super-2 number, since 2×5523981² = 61028732176722, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5523901) 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, 920661 + ... + 920666.

It is an arithmetic number, because the mean of its divisors is an integer number (1841328).

Almost surely, 2^5523981 is an apocalyptic number.

It is an amenable number.

5523981 is a deficient number, since it is larger than the sum of its proper divisors (1841331).

5523981 is a wasteful number, since it uses less digits than its factorization.

5523981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841330.

The product of its digits is 10800, while the sum is 33.

The square root of 5523981 is about 2350.3150852598. The cubic root of 5523981 is about 176.7735941434.

The spelling of 5523981 in words is "five million, five hundred twenty-three thousand, nine hundred eighty-one".