52021232 has 20 divisors (see below), whose sum is σ = 101588736. Its totient is φ = 25804800.

The previous prime is 52021219. The next prime is 52021247. The reversal of 52021232 is 23212025.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 52021232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10769 + ... + 14832.

Almost surely, 2^52021232 is an apocalyptic number.

It is an amenable number.

52021232 is a deficient number, since it is larger than the sum of its proper divisors (49567504).

52021232 is a wasteful number, since it uses less digits than its factorization.

52021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25736 (or 25730 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 52021232 is about 7212.5745750044. The cubic root of 52021232 is about 373.3019092031.

Adding to 52021232 its reverse (23212025), we get a palindrome (75233257).

The spelling of 52021232 in words is "fifty-two million, twenty-one thousand, two hundred thirty-two".