213404055 has 16 divisors (see below), whose sum is σ = 349388160. Its totient is φ = 111168288.

The previous prime is 213404041. The next prime is 213404063. The reversal of 213404055 is 550404312.

213404055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213404055 - 2⁹ = 213403543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164785 + ... + 166074.

It is an arithmetic number, because the mean of its divisors is an integer number (21836760).

Almost surely, 2^213404055 is an apocalyptic number.

213404055 is a deficient number, since it is larger than the sum of its proper divisors (135984105).

213404055 is a wasteful number, since it uses less digits than its factorization.

213404055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330910.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 213404055 is about 14608.3556569519. The cubic root of 213404055 is about 597.5866531654.

Adding to 213404055 its reverse (550404312), we get a palindrome (763808367).

The spelling of 213404055 in words is "two hundred thirteen million, four hundred four thousand, fifty-five".