56433645 has 16 divisors (see below), whose sum is σ = 100326720. Its totient is φ = 30097872.

The previous prime is 56433617. The next prime is 56433647. The reversal of 56433645 is 54633465.

56433645 is a `hidden beast` number, since 5 + 6 + 4 + 3 + 3 + 645 = 666.

It is not a de Polignac number, because 56433645 - 2⁵ = 56433613 is a prime.

It is a super-3 number, since 3×56433645³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56433647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208879 + ... + 209148.

It is an arithmetic number, because the mean of its divisors is an integer number (6270420).

Almost surely, 2^56433645 is an apocalyptic number.

It is an amenable number.

56433645 is a deficient number, since it is larger than the sum of its proper divisors (43893075).

56433645 is a wasteful number, since it uses less digits than its factorization.

56433645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418041 (or 418035 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The square root of 56433645 is about 7512.2330235423. The cubic root of 56433645 is about 383.5712377444.

The spelling of 56433645 in words is "fifty-six million, four hundred thirty-three thousand, six hundred forty-five".