54705219 has 4 divisors (see below), whose sum is σ = 72940296. Its totient is φ = 36470144.

The previous prime is 54705191. The next prime is 54705241. The reversal of 54705219 is 91250745.

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 54705219 - 2²¹ = 52608067 is a prime.

It is a super-2 number, since 2×54705219² = 5985321971675922, 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 54705219.

It is not an unprimeable number, because it can be changed into a prime (54705289) 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, 9117534 + ... + 9117539.

It is an arithmetic number, because the mean of its divisors is an integer number (18235074).

Almost surely, 2^54705219 is an apocalyptic number.

54705219 is a deficient number, since it is larger than the sum of its proper divisors (18235077).

54705219 is a wasteful number, since it uses less digits than its factorization.

54705219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18235076.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 54705219 is about 7396.2976549082. The cubic root of 54705219 is about 379.6146115873.

The spelling of 54705219 in words is "fifty-four million, seven hundred five thousand, two hundred nineteen".