5601636 has 84 divisors (see below), whose sum is σ = 15699852. Its totient is φ = 1741824.

The previous prime is 5601613. The next prime is 5601641. The reversal of 5601636 is 6361065.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 3779136 = 1350^2 + 1944^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 49516 + ... + 49628.

It is an arithmetic number, because the mean of its divisors is an integer number (186903).

Almost surely, 2^5601636 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 5601636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7849926).

5601636 is an abundant number, since it is smaller than the sum of its proper divisors (10098216).

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

5601636 is a wasteful number, since it uses less digits than its factorization.

5601636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 5601636 is about 2366.7775560876. Note that the first 3 decimals coincide. The cubic root of 5601636 is about 177.5980916522.

The spelling of 5601636 in words is "five million, six hundred one thousand, six hundred thirty-six".