52287228 has 48 divisors (see below), whose sum is σ = 154927360. Its totient is φ = 14938992.

The previous prime is 52287227. The next prime is 52287241. The reversal of 52287228 is 82278225.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 52287192 and 52287201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52287227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33826 + ... + 35337.

Almost surely, 2^52287228 is an apocalyptic number.

It is an amenable number.

52287228 is an abundant number, since it is smaller than the sum of its proper divisors (102640132).

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

52287228 is a wasteful number, since it uses less digits than its factorization.

52287228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69183 (or 69175 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 52287228 is about 7230.9908034791. The cubic root of 52287228 is about 373.9370860838.

The spelling of 52287228 in words is "fifty-two million, two hundred eighty-seven thousand, two hundred twenty-eight".