12525513 has 64 divisors (see below), whose sum is σ = 23181312. Its totient is φ = 5806080.

The previous prime is 12525511. The next prime is 12525533. The reversal of 12525513 is 31552521.

It is a happy number.

It is not a de Polignac number, because 12525513 - 2¹ = 12525511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12525511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 129081 + ... + 129177.

It is an arithmetic number, because the mean of its divisors is an integer number (362208).

Almost surely, 2^12525513 is an apocalyptic number.

12525513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12525513 is a deficient number, since it is larger than the sum of its proper divisors (10655799).

12525513 is a wasteful number, since it uses less digits than its factorization.

12525513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174.

The product of its digits is 1500, while the sum is 24.

The square root of 12525513 is about 3539.1401498104. The cubic root of 12525513 is about 232.2372288539.

It can be divided in two parts, 12 and 525513, that added together give a palindrome (525525).

The spelling of 12525513 in words is "twelve million, five hundred twenty-five thousand, five hundred thirteen".