56389219 has 4 divisors (see below), whose sum is σ = 56748544. Its totient is φ = 56029896.

The previous prime is 56389213. The next prime is 56389231. The reversal of 56389219 is 91298365.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91298365 = 5 ⋅18259673.

It is a cyclic number.

It is not a de Polignac number, because 56389219 - 2²³ = 48000611 is a prime.

It is a super-2 number, since 2×56389219² = 6359488038859922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56389213) 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, 179427 + ... + 179740.

It is an arithmetic number, because the mean of its divisors is an integer number (14187136).

Almost surely, 2^56389219 is an apocalyptic number.

56389219 is a deficient number, since it is larger than the sum of its proper divisors (359325).

56389219 is a wasteful number, since it uses less digits than its factorization.

56389219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359324.

The product of its digits is 116640, while the sum is 43.

The square root of 56389219 is about 7509.2755309684. The cubic root of 56389219 is about 383.4705589777.

The spelling of 56389219 in words is "fifty-six million, three hundred eighty-nine thousand, two hundred nineteen".