2531525 has 12 divisors (see below), whose sum is σ = 3171300. Its totient is φ = 2004480.

The previous prime is 2531519. The next prime is 2531527. The reversal of 2531525 is 5251352.

It can be written as a sum of positive squares in 6 ways, for example, as 320356 + 2211169 = 566^2 + 1487^2 .

It is not a de Polignac number, because 2531525 - 2¹² = 2527429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2531525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2261 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (264275).

2^2531525 is an apocalyptic number.

2531525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2531525 is a deficient number, since it is larger than the sum of its proper divisors (639775).

2531525 is a wasteful number, since it uses less digits than its factorization.

2531525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1043 counting only the distinct ones).

The product of its digits is 1500, while the sum is 23.

The square root of 2531525 is about 1591.0766794847. The cubic root of 2531525 is about 136.2889796730.

Adding to 2531525 its reverse (5251352), we get a palindrome (7782877).

The spelling of 2531525 in words is "two million, five hundred thirty-one thousand, five hundred twenty-five".