53565606 has 48 divisors (see below), whose sum is σ = 123658704. Its totient is φ = 16699392.

The previous prime is 53565599. The next prime is 53565637. The reversal of 53565606 is 60656535.

It is a happy number.

53565606 is a `hidden beast` number, since 535 + 65 + 60 + 6 = 666.

It is a super-2 number, since 2×53565606² = 5738548292294472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58605 + ... + 59511.

It is an arithmetic number, because the mean of its divisors is an integer number (2576223).

Almost surely, 2^53565606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53565606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61829352).

53565606 is an abundant number, since it is smaller than the sum of its proper divisors (70093098).

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

53565606 is a wasteful number, since it uses less digits than its factorization.

53565606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 53565606 is about 7318.8527789538. The cubic root of 53565606 is about 376.9600625632.

The spelling of 53565606 in words is "fifty-three million, five hundred sixty-five thousand, six hundred six".