213952625 has 8 divisors (see below), whose sum is σ = 267013032. Its totient is φ = 171162000.

The previous prime is 213952567. The next prime is 213952631. The reversal of 213952625 is 526259312.

It can be written as a sum of positive squares in 4 ways, for example, as 295936 + 213656689 = 544^2 + 14617^2 .

It is not a de Polignac number, because 213952625 - 2¹² = 213948529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855686 + ... + 855935.

It is an arithmetic number, because the mean of its divisors is an integer number (33376629).

Almost surely, 2^213952625 is an apocalyptic number.

213952625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

213952625 is a deficient number, since it is larger than the sum of its proper divisors (53060407).

213952625 is an equidigital number, since it uses as much as digits as its factorization.

213952625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711636 (or 1711626 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 213952625 is about 14627.1195045368. The cubic root of 213952625 is about 598.0982610910.

The spelling of 213952625 in words is "two hundred thirteen million, nine hundred fifty-two thousand, six hundred twenty-five".