52280428 has 24 divisors (see below), whose sum is σ = 93117024. Its totient is φ = 25680000.

The previous prime is 52280413. The next prime is 52280429. The reversal of 52280428 is 82408225.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52280428.

It is not an unprimeable number, because it can be changed into a prime (52280429) 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, 60576 + ... + 61432.

It is an arithmetic number, because the mean of its divisors is an integer number (3879876).

Almost surely, 2^52280428 is an apocalyptic number.

It is an amenable number.

52280428 is a deficient number, since it is larger than the sum of its proper divisors (40836596).

52280428 is a wasteful number, since it uses less digits than its factorization.

52280428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 52280428 is about 7230.5205898331. The cubic root of 52280428 is about 373.9208750987.

The spelling of 52280428 in words is "fifty-two million, two hundred eighty thousand, four hundred twenty-eight".