54156219 has 24 divisors (see below), whose sum is σ = 78704640. Its totient is φ = 33108192.

The previous prime is 54156211. The next prime is 54156247. The reversal of 54156219 is 91265145.

It is not a de Polignac number, because 54156219 - 2³ = 54156211 is a prime.

It is a super-2 number, since 2×54156219² = 5865792112751922, 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 54156219.

It is not an unprimeable number, because it can be changed into a prime (54156211) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 112822 + ... + 113300.

It is an arithmetic number, because the mean of its divisors is an integer number (3279360).

Almost surely, 2^54156219 is an apocalyptic number.

54156219 is a deficient number, since it is larger than the sum of its proper divisors (24548421).

54156219 is a wasteful number, since it uses less digits than its factorization.

54156219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 718 counting only the distinct ones).

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

The square root of 54156219 is about 7359.0909085294. The cubic root of 54156219 is about 378.3404522111.

The spelling of 54156219 in words is "fifty-four million, one hundred fifty-six thousand, two hundred nineteen".