213244055 has 8 divisors (see below), whose sum is σ = 255997152. Its totient is φ = 170525728.

The previous prime is 213244033. The next prime is 213244067. The reversal of 213244055 is 550442312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 213244055 - 2⁶ = 213243991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7574 + ... + 21996.

It is an arithmetic number, because the mean of its divisors is an integer number (31999644).

Almost surely, 2^213244055 is an apocalyptic number.

213244055 is a deficient number, since it is larger than the sum of its proper divisors (42753097).

213244055 is a wasteful number, since it uses less digits than its factorization.

213244055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17385.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 213244055 is about 14602.8783121685. The cubic root of 213244055 is about 597.4372686719.

Adding to 213244055 its reverse (550442312), we get a palindrome (763686367).

The spelling of 213244055 in words is "two hundred thirteen million, two hundred forty-four thousand, fifty-five".