28201051 has 2 divisors, whose sum is σ = 28201052. Its totient is φ = 28201050.

The previous prime is 28201049. The next prime is 28201087. The reversal of 28201051 is 15010282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28201051 - 2¹ = 28201049 is a prime.

Together with 28201049, 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 (28201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14100525 + 14100526.

It is an arithmetic number, because the mean of its divisors is an integer number (14100526).

Almost surely, 2^28201051 is an apocalyptic number.

28201051 is a deficient number, since it is larger than the sum of its proper divisors (1).

28201051 is an equidigital number, since it uses as much as digits as its factorization.

28201051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 28201051 is about 5310.4661753936. The cubic root of 28201051 is about 304.3839612573.

The spelling of 28201051 in words is "twenty-eight million, two hundred one thousand, fifty-one".