271820225 has 12 divisors (see below), whose sum is σ = 356884524. Its totient is φ = 204664320.

The previous prime is 271820207. The next prime is 271820249. The reversal of 271820225 is 522028172.

It can be written as a sum of positive squares in 6 ways, for example, as 24167056 + 247653169 = 4916^2 + 15737^2 .

It is not a de Polignac number, because 271820225 - 2⁸ = 271819969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319364 + ... + 320213.

It is an arithmetic number, because the mean of its divisors is an integer number (29740377).

Almost surely, 2^271820225 is an apocalyptic number.

271820225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

271820225 is a deficient number, since it is larger than the sum of its proper divisors (85064299).

271820225 is a wasteful number, since it uses less digits than its factorization.

271820225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639604 (or 639599 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 271820225 is about 16486.9713713587. The cubic root of 271820225 is about 647.7795834004.

Adding to 271820225 its reverse (522028172), we get a palindrome (793848397).

The spelling of 271820225 in words is "two hundred seventy-one million, eight hundred twenty thousand, two hundred twenty-five".