12523023425 has 12 divisors (see below), whose sum is σ = 16940235696. Its totient is φ = 9107653200.

The previous prime is 12523023419. The next prime is 12523023427. The reversal of 12523023425 is 52432032521.

It is not a de Polignac number, because 12523023425 - 2¹² = 12523019329 is a prime.

It is a super-2 number, since 2×12523023425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12523023427) 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, 22768859 + ... + 22769408.

It is an arithmetic number, because the mean of its divisors is an integer number (1411686308).

Almost surely, 2^12523023425 is an apocalyptic number.

It is an amenable number.

12523023425 is a deficient number, since it is larger than the sum of its proper divisors (4417212271).

12523023425 is a wasteful number, since it uses less digits than its factorization.

12523023425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45538288 (or 45538283 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 12523023425 its reverse (52432032521), we get a palindrome (64955055946).

The spelling of 12523023425 in words is "twelve billion, five hundred twenty-three million, twenty-three thousand, four hundred twenty-five".