28552411 has 4 divisors (see below), whose sum is σ = 28584400. Its totient is φ = 28520424.

The previous prime is 28552373. The next prime is 28552427. The reversal of 28552411 is 11425582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28552411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28552411.

It is not an unprimeable number, because it can be changed into a prime (28552451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14616 + ... + 16453.

It is an arithmetic number, because the mean of its divisors is an integer number (7146100).

Almost surely, 2^28552411 is an apocalyptic number.

28552411 is a deficient number, since it is larger than the sum of its proper divisors (31989).

28552411 is an equidigital number, since it uses as much as digits as its factorization.

28552411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31988.

The product of its digits is 3200, while the sum is 28.

The square root of 28552411 is about 5343.4456112138. The cubic root of 28552411 is about 305.6428651336.

Adding to 28552411 its reverse (11425582), we get a palindrome (39977993).

The spelling of 28552411 in words is "twenty-eight million, five hundred fifty-two thousand, four hundred eleven".