55877219 has 16 divisors (see below), whose sum is σ = 59222016. Its totient is φ = 52660800.

The previous prime is 55877207. The next prime is 55877251. The reversal of 55877219 is 91277855.

It is a cyclic number.

It is not a de Polignac number, because 55877219 - 2⁴ = 55877203 is a prime.

It is a super-2 number, since 2×55877219² = 6244527206347922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55877219.

It is not an unprimeable number, because it can be changed into a prime (55877279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206054 + ... + 206324.

It is an arithmetic number, because the mean of its divisors is an integer number (3701376).

Almost surely, 2^55877219 is an apocalyptic number.

55877219 is a deficient number, since it is larger than the sum of its proper divisors (3344797).

55877219 is a wasteful number, since it uses less digits than its factorization.

55877219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its digits is 176400, while the sum is 44.

The square root of 55877219 is about 7475.1066213132. The cubic root of 55877219 is about 382.3064229041.

It can be divided in two parts, 558 and 77219, that added together give a palindrome (77777).

The spelling of 55877219 in words is "fifty-five million, eight hundred seventy-seven thousand, two hundred nineteen".