5623081 has 2 divisors, whose sum is σ = 5623082. Its totient is φ = 5623080.

The previous prime is 5623043. The next prime is 5623087. The reversal of 5623081 is 1803265.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5331481 + 291600 = 2309^2 + 540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5623081 is a prime.

It is a super-3 number, since 3×5623081³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (5623087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811540 + 2811541.

It is an arithmetic number, because the mean of its divisors is an integer number (2811541).

Almost surely, 2^5623081 is an apocalyptic number.

It is an amenable number.

5623081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5623081 is an equidigital number, since it uses as much as digits as its factorization.

5623081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 5623081 is about 2371.3036498939. The cubic root of 5623081 is about 177.8244386923.

Subtracting from 5623081 its product of nonzero digits (1440), we obtain a square (5621641 = 2371²).

The spelling of 5623081 in words is "five million, six hundred twenty-three thousand, eighty-one".