28552427 has 2 divisors, whose sum is σ = 28552428. Its totient is φ = 28552426.

The previous prime is 28552373. The next prime is 28552429. The reversal of 28552427 is 72425582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28552427 - 2¹⁶ = 28486891 is a prime.

Together with 28552429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28552429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276213 + 14276214.

It is an arithmetic number, because the mean of its divisors is an integer number (14276214).

Almost surely, 2^28552427 is an apocalyptic number.

28552427 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552427 is an equidigital number, since it uses as much as digits as its factorization.

28552427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44800, while the sum is 35.

The square root of 28552427 is about 5343.4471083749. The cubic root of 28552427 is about 305.6429222249.

The spelling of 28552427 in words is "twenty-eight million, five hundred fifty-two thousand, four hundred twenty-seven".