53316564 has 96 divisors (see below), whose sum is σ = 148006656. Its totient is φ = 14622720.

The previous prime is 53316563. The next prime is 53316577. The reversal of 53316564 is 46561335.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53316563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389104 + ... + 389240.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^53316564 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 53316564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74003328).

53316564 is an abundant number, since it is smaller than the sum of its proper divisors (94690092).

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

53316564 is a wasteful number, since it uses less digits than its factorization.

53316564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 303 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 53316564 is about 7301.8192253712. The cubic root of 53316564 is about 376.3749560497.

Adding to 53316564 its reverse (46561335), we get a palindrome (99877899).

The spelling of 53316564 in words is "fifty-three million, three hundred sixteen thousand, five hundred sixty-four".