55213022 has 8 divisors (see below), whose sum is σ = 82852200. Its totient is φ = 27595624.

The previous prime is 55213007. The next prime is 55213027. The reversal of 55213022 is 22031255.

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

It is a junction number, because it is equal to n+sod(n) for n = 55212985 and 55213003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213027) 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 3 ways as a sum of consecutive naturals, for example, 4604 + ... + 11472.

It is an arithmetic number, because the mean of its divisors is an integer number (10356525).

Almost surely, 2^55213022 is an apocalyptic number.

55213022 is a deficient number, since it is larger than the sum of its proper divisors (27639178).

55213022 is a wasteful number, since it uses less digits than its factorization.

55213022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10890.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55213022 is about 7430.5465478658. The cubic root of 55213022 is about 380.7855908605.

Adding to 55213022 its reverse (22031255), we get a palindrome (77244277).

The spelling of 55213022 in words is "fifty-five million, two hundred thirteen thousand, twenty-two".