52561264 has 40 divisors (see below), whose sum is σ = 117715680. Its totient is φ = 22268928.

The previous prime is 52561247. The next prime is 52561343. The reversal of 52561264 is 46216525.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7332 + ... + 12604.

It is an arithmetic number, because the mean of its divisors is an integer number (2942892).

Almost surely, 2^52561264 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 52561264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58857840).

52561264 is an abundant number, since it is smaller than the sum of its proper divisors (65154416).

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

52561264 is a wasteful number, since it uses less digits than its factorization.

52561264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5371 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 52561264 is about 7249.9147581196. The cubic root of 52561264 is about 374.5892129899.

Adding to 52561264 its reverse (46216525), we get a palindrome (98777789).

It can be divided in two parts, 52561 and 264, that added together give a palindrome (52825).

The spelling of 52561264 in words is "fifty-two million, five hundred sixty-one thousand, two hundred sixty-four".