211056471 has 6 divisors (see below), whose sum is σ = 304859360. Its totient is φ = 140704308.

The previous prime is 211056457. The next prime is 211056481. The reversal of 211056471 is 174650112.

It is a happy number.

211056471 is a `hidden beast` number, since 2 + 1 + 10 + 5 + 647 + 1 = 666.

It is not a de Polignac number, because 211056471 - 2⁶ = 211056407 is a prime.

It is a super-3 number, since 3×211056471³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211056431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11725351 + ... + 11725368.

Almost surely, 2^211056471 is an apocalyptic number.

211056471 is a deficient number, since it is larger than the sum of its proper divisors (93802889).

211056471 is a wasteful number, since it uses less digits than its factorization.

211056471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23450725 (or 23450722 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 211056471 is about 14527.7827282762. The cubic root of 211056471 is about 595.3872873452.

The spelling of 211056471 in words is "two hundred eleven million, fifty-six thousand, four hundred seventy-one".