52821552 has 40 divisors (see below), whose sum is σ = 155950336. Its totient is φ = 15091776.

The previous prime is 52821541. The next prime is 52821553. The reversal of 52821552 is 25512825.

It is not an unprimeable number, because it can be changed into a prime (52821553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78268 + ... + 78939.

Almost surely, 2^52821552 is an apocalyptic number.

It is an amenable number.

52821552 is an abundant number, since it is smaller than the sum of its proper divisors (103128784).

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

52821552 is a wasteful number, since it uses less digits than its factorization.

52821552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157225 (or 157219 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The square root of 52821552 is about 7267.8436967233. The cubic root of 52821552 is about 375.2065280134.

The spelling of 52821552 in words is "fifty-two million, eight hundred twenty-one thousand, five hundred fifty-two".