52564446 has 48 divisors (see below), whose sum is σ = 126612720. Its totient is φ = 15624960.

The previous prime is 52564439. The next prime is 52564451. The reversal of 52564446 is 64446525.

52564446 is a `hidden beast` number, since 5 + 2 + 5 + 644 + 4 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 52564446.

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, 7990 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (2637765).

Almost surely, 2^52564446 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52564446, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63306360).

52564446 is an abundant number, since it is smaller than the sum of its proper divisors (74048274).

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

52564446 is a wasteful number, since it uses less digits than its factorization.

52564446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081 (or 5078 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 52564446 is about 7250.1342056544. The cubic root of 52564446 is about 374.5967719077.

The spelling of 52564446 in words is "fifty-two million, five hundred sixty-four thousand, four hundred forty-six".