28353550 has 24 divisors (see below), whose sum is σ = 54027792. Its totient is φ = 11064000.

The previous prime is 28353541. The next prime is 28353551. The reversal of 28353550 is 5535382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28353551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4866 + ... + 8965.

It is an arithmetic number, because the mean of its divisors is an integer number (2251158).

Almost surely, 2^28353550 is an apocalyptic number.

28353550 is a deficient number, since it is larger than the sum of its proper divisors (25674242).

28353550 is a wasteful number, since it uses less digits than its factorization.

28353550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13884 (or 13879 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 28353550 is about 5324.8051607547. The cubic root of 28353550 is about 304.9316338750.

The spelling of 28353550 in words is "twenty-eight million, three hundred fifty-three thousand, five hundred fifty".