28558052 has 6 divisors (see below), whose sum is σ = 49976598. Its totient is φ = 14279024.

The previous prime is 28558051. The next prime is 28558073. The reversal of 28558052 is 25085582.

It can be written as a sum of positive squares in only one way, i.e., 27290176 + 1267876 = 5224^2 + 1126^2 .

It is a super-3 number, since 3×28558052³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28558051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3569753 + ... + 3569760.

It is an arithmetic number, because the mean of its divisors is an integer number (8329433).

Almost surely, 2^28558052 is an apocalyptic number.

It is an amenable number.

28558052 is a deficient number, since it is larger than the sum of its proper divisors (21418546).

28558052 is a wasteful number, since it uses less digits than its factorization.

28558052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139517 (or 7139515 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 28558052 is about 5343.9734280777. The cubic root of 28558052 is about 305.6629920722.

The spelling of 28558052 in words is "twenty-eight million, five hundred fifty-eight thousand, fifty-two".