2231302525 has 12 divisors (see below), whose sum is σ = 2912437600. Its totient is φ = 1691092080.

The previous prime is 2231302517. The next prime is 2231302553. The reversal of 2231302525 is 5252031322.

It is not a de Polignac number, because 2231302525 - 2³ = 2231302517 is a prime.

It is a super-3 number, since 3×2231302525³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 2231302525.

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, 2348265 + ... + 2349214.

Almost surely, 2^2231302525 is an apocalyptic number.

2231302525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2231302525 is a deficient number, since it is larger than the sum of its proper divisors (681135075).

2231302525 is a wasteful number, since it uses less digits than its factorization.

2231302525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4697508 (or 4697503 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2231302525 is about 47236.6650495142. The cubic root of 2231302525 is about 1306.7308741342.

Adding to 2231302525 its reverse (5252031322), we get a palindrome (7483333847).

The spelling of 2231302525 in words is "two billion, two hundred thirty-one million, three hundred two thousand, five hundred twenty-five".