56145219 has 16 divisors (see below), whose sum is σ = 80919552. Its totient is φ = 34422048.

The previous prime is 56145217. The next prime is 56145227. The reversal of 56145219 is 91254165.

56145219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56145219 - 2¹ = 56145217 is a prime.

It is a super-2 number, since 2×56145219² = 6304571233115922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56145219.

It is not an unprimeable number, because it can be changed into a prime (56145217) 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 15 ways as a sum of consecutive naturals, for example, 8494 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (5057472).

Almost surely, 2^56145219 is an apocalyptic number.

56145219 is a deficient number, since it is larger than the sum of its proper divisors (24774333).

56145219 is a wasteful number, since it uses less digits than its factorization.

56145219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5386.

The product of its digits is 10800, while the sum is 33.

The square root of 56145219 is about 7493.0113439124. The cubic root of 56145219 is about 382.9166581902.

The spelling of 56145219 in words is "fifty-six million, one hundred forty-five thousand, two hundred nineteen".