56643363 has 48 divisors (see below), whose sum is σ = 97344000. Its totient is φ = 31716720.

The previous prime is 56643361. The next prime is 56643373. The reversal of 56643363 is 36334665.

It is a happy number.

56643363 is a `hidden beast` number, since 5 + 6 + 643 + 3 + 6 + 3 = 666.

It is not a de Polignac number, because 56643363 - 2¹ = 56643361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56643361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181978 + ... + 182288.

It is an arithmetic number, because the mean of its divisors is an integer number (2028000).

Almost surely, 2^56643363 is an apocalyptic number.

56643363 is a deficient number, since it is larger than the sum of its proper divisors (40700637).

56643363 is a wasteful number, since it uses less digits than its factorization.

56643363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 380 counting only the distinct ones).

The product of its digits is 116640, while the sum is 36.

The square root of 56643363 is about 7526.1785123660. The cubic root of 56643363 is about 384.0457912515.

The spelling of 56643363 in words is "fifty-six million, six hundred forty-three thousand, three hundred sixty-three".