56642269 has 8 divisors (see below), whose sum is σ = 58032288. Its totient is φ = 55268400.

The previous prime is 56642263. The next prime is 56642281. The reversal of 56642269 is 96224665.

56642269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56642269 - 2⁵ = 56642237 is a prime.

It is a super-2 number, since 2×56642269² = 6416693274936722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56642263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219 + ... + 11119.

It is an arithmetic number, because the mean of its divisors is an integer number (7254036).

Almost surely, 2^56642269 is an apocalyptic number.

It is an amenable number.

56642269 is a deficient number, since it is larger than the sum of its proper divisors (1390019).

56642269 is a wasteful number, since it uses less digits than its factorization.

56642269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075.

The product of its digits is 155520, while the sum is 40.

The square root of 56642269 is about 7526.1058323678. The cubic root of 56642269 is about 384.0433187712.

The spelling of 56642269 in words is "fifty-six million, six hundred forty-two thousand, two hundred sixty-nine".