53222664 has 48 divisors (see below), whose sum is σ = 145476720. Its totient is φ = 16092160.

The previous prime is 53222641. The next prime is 53222669. The reversal of 53222664 is 46622235.

It is not an unprimeable number, because it can be changed into a prime (53222669) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118312 + ... + 118760.

It is an arithmetic number, because the mean of its divisors is an integer number (3030765).

Almost surely, 2^53222664 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 53222664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72738360).

53222664 is an abundant number, since it is smaller than the sum of its proper divisors (92254056).

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

53222664 is a wasteful number, since it uses less digits than its factorization.

53222664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 465 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 53222664 is about 7295.3864873631. The cubic root of 53222664 is about 376.1538716832.

Adding to 53222664 its reverse (46622235), we get a palindrome (99844899).

The spelling of 53222664 in words is "fifty-three million, two hundred twenty-two thousand, six hundred sixty-four".