56345642 has 8 divisors (see below), whose sum is σ = 85266756. Its totient is φ = 27923392.

The previous prime is 56345617. The next prime is 56345647. The reversal of 56345642 is 24654365.

It is a happy number.

56345642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 54007801 + 2337841 = 7349^2 + 1529^2 .

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

It is not an unprimeable number, because it can be changed into a prime (56345647) 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 3 ways as a sum of consecutive naturals, for example, 124433 + ... + 124884.

Almost surely, 2^56345642 is an apocalyptic number.

56345642 is a deficient number, since it is larger than the sum of its proper divisors (28921114).

56345642 is a wasteful number, since it uses less digits than its factorization.

56345642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249432.

The product of its digits is 86400, while the sum is 35.

The square root of 56345642 is about 7506.3734252967. The cubic root of 56345642 is about 383.3717528391.

The spelling of 56345642 in words is "fifty-six million, three hundred forty-five thousand, six hundred forty-two".