12532453400 has 48 divisors (see below), whose sum is σ = 29160529440. Its totient is φ = 5009097600.

The previous prime is 12532453399. The next prime is 12532453403. The reversal of 12532453400 is 435423521.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12532453403) 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, 241790 + ... + 289010.

It is an arithmetic number, because the mean of its divisors is an integer number (607511030).

Almost surely, 2^12532453400 is an apocalyptic number.

12532453400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12532453400 is an abundant number, since it is smaller than the sum of its proper divisors (16628076040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12532453400 is a wasteful number, since it uses less digits than its factorization.

12532453400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48564 (or 48555 counting only the distinct ones).

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

Adding to 12532453400 its reverse (435423521), we get a palindrome (12967876921).

The spelling of 12532453400 in words is "twelve billion, five hundred thirty-two million, four hundred fifty-three thousand, four hundred".