56243938 has 4 divisors (see below), whose sum is σ = 84365910. Its totient is φ = 28121968.

The previous prime is 56243927. The next prime is 56243969. The reversal of 56243938 is 83934265.

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., 35605089 + 20638849 = 5967^2 + 4543^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 56243938.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14060983 + ... + 14060986.

Almost surely, 2^56243938 is an apocalyptic number.

56243938 is a deficient number, since it is larger than the sum of its proper divisors (28121972).

56243938 is a wasteful number, since it uses less digits than its factorization.

56243938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28121971.

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

The square root of 56243938 is about 7499.5958557778. The cubic root of 56243938 is about 383.1409516496.

The spelling of 56243938 in words is "fifty-six million, two hundred forty-three thousand, nine hundred thirty-eight".