28573552 has 20 divisors (see below), whose sum is σ = 63270256. Its totient is φ = 12245760.

The previous prime is 28573547. The next prime is 28573553. The reversal of 28573552 is 25537582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573553) 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 3 ways as a sum of consecutive naturals, for example, 127449 + ... + 127672.

Almost surely, 2^28573552 is an apocalyptic number.

It is an amenable number.

28573552 is an abundant number, since it is smaller than the sum of its proper divisors (34696704).

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

28573552 is a wasteful number, since it uses less digits than its factorization.

28573552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255136 (or 255130 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 28573552 is about 5345.4234631131. The cubic root of 28573552 is about 305.7182820186.

It can be divided in two parts, 285 and 73552, that added together give a palindrome (73837).

The spelling of 28573552 in words is "twenty-eight million, five hundred seventy-three thousand, five hundred fifty-two".