56633189 has 2 divisors, whose sum is σ = 56633190. Its totient is φ = 56633188.

The previous prime is 56633183. The next prime is 56633191. The reversal of 56633189 is 98133665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33756100 + 22877089 = 5810^2 + 4783^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56633189 is a prime.

Together with 56633191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56633183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28316594 + 28316595.

It is an arithmetic number, because the mean of its divisors is an integer number (28316595).

Almost surely, 2^56633189 is an apocalyptic number.

It is an amenable number.

56633189 is a deficient number, since it is larger than the sum of its proper divisors (1).

56633189 is an equidigital number, since it uses as much as digits as its factorization.

56633189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 41.

The square root of 56633189 is about 7525.5025745793. The cubic root of 56633189 is about 384.0227964078.

The spelling of 56633189 in words is "fifty-six million, six hundred thirty-three thousand, one hundred eighty-nine".