213402553 has 12 divisors (see below), whose sum is σ = 264093888. Its totient is φ = 168845040.

The previous prime is 213402551. The next prime is 213402577. The reversal of 213402553 is 355204312.

213402553 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 213402553 - 2¹ = 213402551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213402551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89013 + ... + 91378.

It is an arithmetic number, because the mean of its divisors is an integer number (22007824).

Almost surely, 2^213402553 is an apocalyptic number.

It is an amenable number.

213402553 is a deficient number, since it is larger than the sum of its proper divisors (50691335).

213402553 is a wasteful number, since it uses less digits than its factorization.

213402553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180424 (or 180411 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 213402553 is about 14608.3042479269. The cubic root of 213402553 is about 597.5852511657.

Adding to 213402553 its reverse (355204312), we get a palindrome (568606865).

The spelling of 213402553 in words is "two hundred thirteen million, four hundred two thousand, five hundred fifty-three".