213360403525 has 6 divisors (see below), whose sum is σ = 264566900402. Its totient is φ = 170688322800.

The previous prime is 213360403517. The next prime is 213360403549. The reversal of 213360403525 is 525304063312.

It can be written as a sum of positive squares in 3 ways, for example, as 6022116 + 213354381409 = 2454^2 + 461903^2 .

It is not a de Polignac number, because 213360403525 - 2³ = 213360403517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4267208046 + ... + 4267208095.

Almost surely, 2^213360403525 is an apocalyptic number.

213360403525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213360403525 is a deficient number, since it is larger than the sum of its proper divisors (51206496877).

213360403525 is an equidigital number, since it uses as much as digits as its factorization.

213360403525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8534416151 (or 8534416146 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 213360403525 its reverse (525304063312), we get a palindrome (738664466837).

The spelling of 213360403525 in words is "two hundred thirteen billion, three hundred sixty million, four hundred three thousand, five hundred twenty-five".