56636445 has 8 divisors (see below), whose sum is σ = 90618336. Its totient is φ = 30206096.

The previous prime is 56636441. The next prime is 56636477. The reversal of 56636445 is 54463665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56636445 - 2² = 56636441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56636441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1887867 + ... + 1887896.

It is an arithmetic number, because the mean of its divisors is an integer number (11327292).

Almost surely, 2^56636445 is an apocalyptic number.

It is an amenable number.

56636445 is a deficient number, since it is larger than the sum of its proper divisors (33981891).

56636445 is a wasteful number, since it uses less digits than its factorization.

56636445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775771.

The product of its digits is 259200, while the sum is 39.

The square root of 56636445 is about 7525.7189025368. The cubic root of 56636445 is about 384.0301557807.

The spelling of 56636445 in words is "fifty-six million, six hundred thirty-six thousand, four hundred forty-five".