56436223 has 2 divisors, whose sum is σ = 56436224. Its totient is φ = 56436222.

The previous prime is 56436217. The next prime is 56436229. The reversal of 56436223 is 32263465.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (56436217) and next prime (56436229).

It is a cyclic number.

It is not a de Polignac number, because 56436223 - 2²⁵ = 22881791 is a prime.

It is equal to p_3362782 and since 56436223 and 3362782 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56436229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28218111 + 28218112.

It is an arithmetic number, because the mean of its divisors is an integer number (28218112).

Almost surely, 2^56436223 is an apocalyptic number.

56436223 is a deficient number, since it is larger than the sum of its proper divisors (1).

56436223 is an equidigital number, since it uses as much as digits as its factorization.

56436223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 56436223 is about 7512.4046083794. The cubic root of 56436223 is about 383.5770784185.

Adding to 56436223 its reverse (32263465), we get a palindrome (88699688).

The spelling of 56436223 in words is "fifty-six million, four hundred thirty-six thousand, two hundred twenty-three".