5523181 has 4 divisors (see below), whose sum is σ = 5848092. Its totient is φ = 5198272.

The previous prime is 5523173. The next prime is 5523211. The reversal of 5523181 is 1813255.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3724900 + 1798281 = 1930^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 5523181 - 2³ = 5523173 is a prime.

It is a super-2 number, since 2×5523181² = 61011056717522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5523131) 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, 162430 + ... + 162463.

It is an arithmetic number, because the mean of its divisors is an integer number (1462023).

Almost surely, 2^5523181 is an apocalyptic number.

It is an amenable number.

5523181 is a deficient number, since it is larger than the sum of its proper divisors (324911).

5523181 is a wasteful number, since it uses less digits than its factorization.

5523181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324910.

The product of its digits is 1200, while the sum is 25.

The square root of 5523181 is about 2350.1448891505. The cubic root of 5523181 is about 176.7650600986.

The spelling of 5523181 in words is "five million, five hundred twenty-three thousand, one hundred eighty-one".