525432213 has 12 divisors (see below), whose sum is σ = 798903040. Its totient is φ = 331851816.

The previous prime is 525432203. The next prime is 525432221. The reversal of 525432213 is 312234525.

It is a happy number.

It is not a de Polignac number, because 525432213 - 2⁴ = 525432197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525432203) 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 11 ways as a sum of consecutive naturals, for example, 1536181 + ... + 1536522.

Almost surely, 2^525432213 is an apocalyptic number.

It is an amenable number.

525432213 is a deficient number, since it is larger than the sum of its proper divisors (273470827).

525432213 is a wasteful number, since it uses less digits than its factorization.

525432213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072728 (or 3072725 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 525432213 is about 22922.3081952931. The cubic root of 525432213 is about 806.9356416017.

Adding to 525432213 its reverse (312234525), we get a palindrome (837666738).

It can be divided in two parts, 52543 and 2213, that added together give a square (54756 = 234²).

The spelling of 525432213 in words is "five hundred twenty-five million, four hundred thirty-two thousand, two hundred thirteen".