55413219 has 8 divisors (see below), whose sum is σ = 73959952. Its totient is φ = 36904320.

The previous prime is 55413199. The next prime is 55413223. The reversal of 55413219 is 91231455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55413219 - 2¹¹ = 55411171 is a prime.

It is a super-2 number, since 2×55413219² = 6141249679883922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55413289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5842 + ... + 12039.

It is an arithmetic number, because the mean of its divisors is an integer number (9244994).

Almost surely, 2^55413219 is an apocalyptic number.

55413219 is a deficient number, since it is larger than the sum of its proper divisors (18546733).

55413219 is a wasteful number, since it uses less digits than its factorization.

55413219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18917.

The product of its digits is 5400, while the sum is 30.

The square root of 55413219 is about 7444.0055749576. The cubic root of 55413219 is about 381.2452661241.

The spelling of 55413219 in words is "fifty-five million, four hundred thirteen thousand, two hundred nineteen".