12555525 has 12 divisors (see below), whose sum is σ = 20758592. Its totient is φ = 6696240.

The previous prime is 12555511. The next prime is 12555547. The reversal of 12555525 is 52555521.

It is not a de Polignac number, because 12555525 - 2⁴ = 12555509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12555492 and 12555501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83629 + ... + 83778.

Almost surely, 2^12555525 is an apocalyptic number.

12555525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12555525 is a deficient number, since it is larger than the sum of its proper divisors (8203067).

12555525 is a wasteful number, since it uses less digits than its factorization.

12555525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167420 (or 167415 counting only the distinct ones).

The product of its digits is 12500, while the sum is 30.

The square root of 12555525 is about 3543.3776259383. The cubic root of 12555525 is about 232.4225664210.

The spelling of 12555525 in words is "twelve million, five hundred fifty-five thousand, five hundred twenty-five".