281533852 has 6 divisors (see below), whose sum is σ = 492684248. Its totient is φ = 140766924.

The previous prime is 281533843. The next prime is 281533859. The reversal of 281533852 is 258335182.

It is a super-2 number, since 2×281533852² = 158522619643915808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281533859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35191728 + ... + 35191735.

Almost surely, 2^281533852 is an apocalyptic number.

It is an amenable number.

281533852 is a deficient number, since it is larger than the sum of its proper divisors (211150396).

281533852 is a wasteful number, since it uses less digits than its factorization.

281533852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70383467 (or 70383465 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 281533852 is about 16778.9705286111. The cubic root of 281533852 is about 655.4056900529.

The spelling of 281533852 in words is "two hundred eighty-one million, five hundred thirty-three thousand, eight hundred fifty-two".