12635532 has 216 divisors, whose sum is σ = 43570800. Its totient is φ = 3048192.

The previous prime is 12635531. The next prime is 12635563. The reversal of 12635532 is 23553621.

12635532 is a `hidden beast` number, since 126 + 3 + 5 + 532 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12635496 and 12635505.

It is not an unprimeable number, because it can be changed into a prime (12635531) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 435694 + ... + 435722.

Almost surely, 2^12635532 is an apocalyptic number.

12635532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12635532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21785400).

12635532 is an abundant number, since it is smaller than the sum of its proper divisors (30935268).

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

12635532 is a wasteful number, since it uses less digits than its factorization.

12635532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 73 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 12635532 is about 3554.6493497953. The cubic root of 12635532 is about 232.9152067323.

The spelling of 12635532 in words is "twelve million, six hundred thirty-five thousand, five hundred thirty-two".