12545632 has 48 divisors (see below), whose sum is σ = 27896400. Its totient is φ = 5501440.

The previous prime is 12545593. The next prime is 12545633. The reversal of 12545632 is 23654521.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12545632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9594 + ... + 10822.

It is an arithmetic number, because the mean of its divisors is an integer number (581175).

Almost surely, 2^12545632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12545632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13948200).

12545632 is an abundant number, since it is smaller than the sum of its proper divisors (15350768).

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

12545632 is a wasteful number, since it uses less digits than its factorization.

12545632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1271 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 12545632 is about 3541.9813664106. The cubic root of 12545632 is about 232.3615053706.

Subtracting 12545632 from its reverse (23654521), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1254 and 5632, that added together give a palindrome (6886).

The spelling of 12545632 in words is "twelve million, five hundred forty-five thousand, six hundred thirty-two".