56400422 has 16 divisors (see below), whose sum is σ = 91642320. Its totient is φ = 25878432.

The previous prime is 56400419. The next prime is 56400433. The reversal of 56400422 is 22400465.

56400422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 1772 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (5727645).

Almost surely, 2^56400422 is an apocalyptic number.

56400422 is a deficient number, since it is larger than the sum of its proper divisors (35241898).

56400422 is a wasteful number, since it uses less digits than its factorization.

56400422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12727.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 56400422 is about 7510.0214380520. The cubic root of 56400422 is about 383.4959523435.

Adding to 56400422 its reverse (22400465), we get a palindrome (78800887).

The spelling of 56400422 in words is "fifty-six million, four hundred thousand, four hundred twenty-two".