12501632 has 64 divisors (see below), whose sum is σ = 29302560. Its totient is φ = 5237760.

The previous prime is 12501631. The next prime is 12501641. The reversal of 12501632 is 23610521.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is not an unprimeable number, because it can be changed into a prime (12501631) 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, 17963 + ... + 18645.

Almost surely, 2^12501632 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 12501632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14651280).

12501632 is an abundant number, since it is smaller than the sum of its proper divisors (16800928).

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

12501632 is a wasteful number, since it uses less digits than its factorization.

12501632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12501632 is about 3535.7646980533. The cubic root of 12501632 is about 232.0895413384.

Subtracting 12501632 from its reverse (23610521), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1250 and 1632, that added together give a palindrome (2882).

The spelling of 12501632 in words is "twelve million, five hundred one thousand, six hundred thirty-two".