28125023 has 2 divisors, whose sum is σ = 28125024. Its totient is φ = 28125022.

The previous prime is 28125007. The next prime is 28125043. The reversal of 28125023 is 32052182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28125023 - 2⁴ = 28125007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28125023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28125043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14062511 + 14062512.

It is an arithmetic number, because the mean of its divisors is an integer number (14062512).

Almost surely, 2^28125023 is an apocalyptic number.

28125023 is a deficient number, since it is larger than the sum of its proper divisors (1).

28125023 is an equidigital number, since it uses as much as digits as its factorization.

28125023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28125023 is about 5303.3030273595. The cubic root of 28125023 is about 304.1101826768.

The spelling of 28125023 in words is "twenty-eight million, one hundred twenty-five thousand, twenty-three".