52655616 has 160 divisors (see below), whose sum is σ = 168426720. Its totient is φ = 16146432.

The previous prime is 52655591. The next prime is 52655621. The reversal of 52655616 is 61655625.

It is a happy number.

It is a super-2 number, since 2×52655616² = 5545227792678912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179566 + ... + 179858.

It is an arithmetic number, because the mean of its divisors is an integer number (1052667).

Almost surely, 2^52655616 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 52655616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84213360).

52655616 is an abundant number, since it is smaller than the sum of its proper divisors (115771104).

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

52655616 is a wasteful number, since it uses less digits than its factorization.

52655616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 311 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 52655616 is about 7256.4189515215. The cubic root of 52655616 is about 374.8132189831.

Subtracting 52655616 from its reverse (61655625), we obtain a palindrome (9000009).

The spelling of 52655616 in words is "fifty-two million, six hundred fifty-five thousand, six hundred sixteen".