213253325 has 6 divisors (see below), whose sum is σ = 264434154. Its totient is φ = 170602640.

The previous prime is 213253307. The next prime is 213253331. The reversal of 213253325 is 523352312.

It can be written as a sum of positive squares in 3 ways, for example, as 47513449 + 165739876 = 6893^2 + 12874^2 .

It is not a de Polignac number, because 213253325 - 2⁸ = 213253069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213253294 and 213253303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4265042 + ... + 4265091.

It is an arithmetic number, because the mean of its divisors is an integer number (44072359).

Almost surely, 2^213253325 is an apocalyptic number.

213253325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213253325 is a deficient number, since it is larger than the sum of its proper divisors (51180829).

213253325 is an equidigital number, since it uses as much as digits as its factorization.

213253325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8530143 (or 8530138 counting only the distinct ones).

The product of its digits is 5400, while the sum is 26.

The square root of 213253325 is about 14603.1957118981. The cubic root of 213253325 is about 597.4459256748.

The spelling of 213253325 in words is "two hundred thirteen million, two hundred fifty-three thousand, three hundred twenty-five".