12623525 has 12 divisors (see below), whose sum is σ = 15869892. Its totient is φ = 9959040.

The previous prime is 12623521. The next prime is 12623557. The reversal of 12623525 is 52532621.

It can be written as a sum of positive squares in 6 ways, for example, as 13924 + 12609601 = 118^2 + 3551^2 .

It is not a de Polignac number, because 12623525 - 2² = 12623521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12623494 and 12623503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12623521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1634 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1322491).

Almost surely, 2^12623525 is an apocalyptic number.

It is an amenable number.

12623525 is a deficient number, since it is larger than the sum of its proper divisors (3246367).

12623525 is an equidigital number, since it uses as much as digits as its factorization.

12623525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6995 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 12623525 is about 3552.9600335495. The cubic root of 12623525 is about 232.8414069327.

The spelling of 12623525 in words is "twelve million, six hundred twenty-three thousand, five hundred twenty-five".