211849025 has 12 divisors (see below), whose sum is σ = 262876032. Its totient is φ = 169361040.

The previous prime is 211848977. The next prime is 211849037. The reversal of 211849025 is 520948112.

It is not a de Polignac number, because 211849025 - 2¹² = 211844929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211848982 and 211849000.

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 11 ways as a sum of consecutive naturals, for example, 59444 + ... + 62906.

It is an arithmetic number, because the mean of its divisors is an integer number (21906336).

Almost surely, 2^211849025 is an apocalyptic number.

211849025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211849025 is a deficient number, since it is larger than the sum of its proper divisors (51027007).

211849025 is a wasteful number, since it uses less digits than its factorization.

211849025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 211849025 is about 14555.0343524157. The cubic root of 211849025 is about 596.1316175922.

The spelling of 211849025 in words is "two hundred eleven million, eight hundred forty-nine thousand, twenty-five".