56878219 has 4 divisors (see below), whose sum is σ = 56902144. Its totient is φ = 56854296.

The previous prime is 56878187. The next prime is 56878223. The reversal of 56878219 is 91287865.

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

It is a cyclic number.

It is not a de Polignac number, because 56878219 - 2⁵ = 56878187 is a prime.

It is a super-2 number, since 2×56878219² = 6470263593223922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56878249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947 + ... + 13300.

It is an arithmetic number, because the mean of its divisors is an integer number (14225536).

Almost surely, 2^56878219 is an apocalyptic number.

56878219 is a deficient number, since it is larger than the sum of its proper divisors (23925).

56878219 is a wasteful number, since it uses less digits than its factorization.

56878219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23924.

The product of its digits is 241920, while the sum is 46.

The square root of 56878219 is about 7541.7649791014. The cubic root of 56878219 is about 384.5758391577.

It can be divided in two parts, 568 and 78219, that added together give a palindrome (78787).

The spelling of 56878219 in words is "fifty-six million, eight hundred seventy-eight thousand, two hundred nineteen".