28517053 has 2 divisors, whose sum is σ = 28517054. Its totient is φ = 28517052.

The previous prime is 28517051. The next prime is 28517077. The reversal of 28517053 is 35071582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27646564 + 870489 = 5258^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 28517053 - 2¹ = 28517051 is a prime.

Together with 28517051, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28517051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14258526 + 14258527.

It is an arithmetic number, because the mean of its divisors is an integer number (14258527).

Almost surely, 2^28517053 is an apocalyptic number.

It is an amenable number.

28517053 is a deficient number, since it is larger than the sum of its proper divisors (1).

28517053 is an equidigital number, since it uses as much as digits as its factorization.

28517053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 28517053 is about 5340.1360469561. The cubic root of 28517053 is about 305.5166483035.

The spelling of 28517053 in words is "twenty-eight million, five hundred seventeen thousand, fifty-three".