52221576 has 128 divisors (see below), whose sum is σ = 155520000. Its totient is φ = 14434560.

The previous prime is 52221571. The next prime is 52221581. The reversal of 52221576 is 67512225.

It is an interprime number because it is at equal distance from previous prime (52221571) and next prime (52221581).

It is not an unprimeable number, because it can be changed into a prime (52221571) 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, 145285 + ... + 145643.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000).

Almost surely, 2^52221576 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 52221576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77760000).

52221576 is an abundant number, since it is smaller than the sum of its proper divisors (103298424).

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

52221576 is a wasteful number, since it uses less digits than its factorization.

52221576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 423 counting only the distinct ones).

The product of its digits is 8400, while the sum is 30.

The square root of 52221576 is about 7226.4497507421. The cubic root of 52221576 is about 373.7805150270.

The spelling of 52221576 in words is "fifty-two million, two hundred twenty-one thousand, five hundred seventy-six".