211368825 has 48 divisors (see below), whose sum is σ = 408753600. Its totient is φ = 106790400.

The previous prime is 211368797. The next prime is 211368841. The reversal of 211368825 is 528863112.

It is a happy number.

211368825 is a `hidden beast` number, since 211 + 368 + 82 + 5 = 666.

It is not a de Polignac number, because 211368825 - 2⁶ = 211368761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211368825.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4585 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (8515700).

Almost surely, 2^211368825 is an apocalyptic number.

211368825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211368825 is a deficient number, since it is larger than the sum of its proper divisors (197384775).

211368825 is a wasteful number, since it uses less digits than its factorization.

211368825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16519 (or 16508 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 211368825 is about 14538.5289833600. The cubic root of 211368825 is about 595.6808579585.

The spelling of 211368825 in words is "two hundred eleven million, three hundred sixty-eight thousand, eight hundred twenty-five".