56996138 has 16 divisors (see below), whose sum is σ = 90802944. Its totient is φ = 26738880.

The previous prime is 56996131. The next prime is 56996141. The reversal of 56996138 is 83169965.

56996138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56996092 and 56996101.

It is not an unprimeable number, because it can be changed into a prime (56996131) 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 7 ways as a sum of consecutive naturals, for example, 9383 + ... + 14213.

It is an arithmetic number, because the mean of its divisors is an integer number (5675184).

Almost surely, 2^56996138 is an apocalyptic number.

56996138 is a deficient number, since it is larger than the sum of its proper divisors (33806806).

56996138 is a wasteful number, since it uses less digits than its factorization.

56996138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197.

The product of its digits is 349920, while the sum is 47.

The square root of 56996138 is about 7549.5786637401. The cubic root of 56996138 is about 384.8414211703.

The spelling of 56996138 in words is "fifty-six million, nine hundred ninety-six thousand, one hundred thirty-eight".