56448638 has 4 divisors (see below), whose sum is σ = 84672960. Its totient is φ = 28224318.

The previous prime is 56448617. The next prime is 56448641. The reversal of 56448638 is 83684465.

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

It is a congruent number.

It is an unprimeable number.

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, 14112158 + ... + 14112161.

It is an arithmetic number, because the mean of its divisors is an integer number (21168240).

Almost surely, 2^56448638 is an apocalyptic number.

56448638 is a deficient number, since it is larger than the sum of its proper divisors (28224322).

56448638 is a wasteful number, since it uses less digits than its factorization.

56448638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28224321.

The product of its digits is 552960, while the sum is 44.

The square root of 56448638 is about 7513.2308629510. The cubic root of 56448638 is about 383.6052031466.

The spelling of 56448638 in words is "fifty-six million, four hundred forty-eight thousand, six hundred thirty-eight".