2271187525 has 12 divisors (see below), whose sum is σ = 2817238212. Its totient is φ = 1816327040.

The previous prime is 2271187493. The next prime is 2271187531. The reversal of 2271187525 is 5257811722.

It is a happy number.

2271187525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 407797636 + 1863389889 = 20194^2 + 43167^2 .

It is not a de Polignac number, because 2271187525 - 2⁵ = 2271187493 is a prime.

It is a Duffinian number.

It is a congruent 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, 67479 + ... + 95371.

It is an arithmetic number, because the mean of its divisors is an integer number (234769851).

Almost surely, 2^2271187525 is an apocalyptic number.

2271187525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2271187525 is a deficient number, since it is larger than the sum of its proper divisors (546050687).

2271187525 is a wasteful number, since it uses less digits than its factorization.

2271187525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31160 (or 31155 counting only the distinct ones).

The product of its digits is 78400, while the sum is 40.

The square root of 2271187525 is about 47656.9777157553. The cubic root of 2271187525 is about 1314.4709664802.

The spelling of 2271187525 in words is "two billion, two hundred seventy-one million, one hundred eighty-seven thousand, five hundred twenty-five".