211406325 has 48 divisors (see below), whose sum is σ = 378934080. Its totient is φ = 103995840.

The previous prime is 211406311. The next prime is 211406341. The reversal of 211406325 is 523604112.

It is not a de Polignac number, because 211406325 - 2¹² = 211402229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211406295 and 211406304.

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 47 ways as a sum of consecutive naturals, for example, 164134 + ... + 165416.

It is an arithmetic number, because the mean of its divisors is an integer number (7894460).

Almost surely, 2^211406325 is an apocalyptic number.

211406325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211406325 is a deficient number, since it is larger than the sum of its proper divisors (167527755).

211406325 is a wasteful number, since it uses less digits than its factorization.

211406325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 211406325 is about 14539.8186027199. The cubic root of 211406325 is about 595.7160834485.

The spelling of 211406325 in words is "two hundred eleven million, four hundred six thousand, three hundred twenty-five".