211725472 has 36 divisors (see below), whose sum is σ = 484892730. Its totient is φ = 90738816.

The previous prime is 211725467. The next prime is 211725487. The reversal of 211725472 is 274527112.

It can be written as a sum of positive squares in only one way, i.e., 206324496 + 5400976 = 14364^2 + 2324^2 .

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 5 ways as a sum of consecutive naturals, for example, 65947 + ... + 69082.

Almost surely, 2^211725472 is an apocalyptic number.

It is an amenable number.

211725472 is an abundant number, since it is smaller than the sum of its proper divisors (273167258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211725472 is a wasteful number, since it uses less digits than its factorization.

211725472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135053 (or 135038 counting only the distinct ones).

The product of its digits is 7840, while the sum is 31.

The square root of 211725472 is about 14550.7893943937. The cubic root of 211725472 is about 596.0157045845.

The spelling of 211725472 in words is "two hundred eleven million, seven hundred twenty-five thousand, four hundred seventy-two".