28980552 has 32 divisors (see below), whose sum is σ = 75602880. Its totient is φ = 9240000.

The previous prime is 28980517. The next prime is 28980557. The reversal of 28980552 is 25508982.

It is a self number, because there is not a number n which added to its sum of digits gives 28980552.

It is not an unprimeable number, because it can be changed into a prime (28980557) 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, 25699 + ... + 26802.

It is an arithmetic number, because the mean of its divisors is an integer number (2362590).

Almost surely, 2^28980552 is an apocalyptic number.

It is an amenable number.

28980552 is an abundant number, since it is smaller than the sum of its proper divisors (46622328).

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

28980552 is a wasteful number, since it uses less digits than its factorization.

28980552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52533 (or 52529 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 28980552 is about 5383.3588028293. The cubic root of 28980552 is about 307.1629885695.

The spelling of 28980552 in words is "twenty-eight million, nine hundred eighty thousand, five hundred fifty-two".