56194042 has 4 divisors (see below), whose sum is σ = 84291066. Its totient is φ = 28097020.

The previous prime is 56194003. The next prime is 56194049. The reversal of 56194042 is 24049165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 78961 = 7491^2 + 281^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 56193995 and 56194013.

It is not an unprimeable number, because it can be changed into a prime (56194049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14048509 + ... + 14048512.

Almost surely, 2^56194042 is an apocalyptic number.

56194042 is a deficient number, since it is larger than the sum of its proper divisors (28097024).

56194042 is a wasteful number, since it uses less digits than its factorization.

56194042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28097023.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 56194042 is about 7496.2685384130. The cubic root of 56194042 is about 383.0276188024.

The spelling of 56194042 in words is "fifty-six million, one hundred ninety-four thousand, forty-two".