212536625 has 32 divisors (see below), whose sum is σ = 308924928. Its totient is φ = 142958400.

The previous prime is 212536613. The next prime is 212536657. The reversal of 212536625 is 526635212.

It is not a de Polignac number, because 212536625 - 2¹⁸ = 212274481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212536591 and 212536600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44084 + ... + 48666.

It is an arithmetic number, because the mean of its divisors is an integer number (9653904).

Almost surely, 2^212536625 is an apocalyptic number.

212536625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212536625 is a deficient number, since it is larger than the sum of its proper divisors (96388303).

212536625 is an equidigital number, since it uses as much as digits as its factorization.

212536625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4658 (or 4648 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 212536625 is about 14578.6359101255. The cubic root of 212536625 is about 596.7758773840.

The spelling of 212536625 in words is "two hundred twelve million, five hundred thirty-six thousand, six hundred twenty-five".