28594425 has 48 divisors (see below), whose sum is σ = 51371712. Its totient is φ = 13977600.

The previous prime is 28594403. The next prime is 28594427. The reversal of 28594425 is 52449582.

It is not a de Polignac number, because 28594425 - 2⁵ = 28594393 is a prime.

It is a super-2 number, since 2×28594425² = 1635282282161250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28594427) 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 in 47 ways as a sum of consecutive naturals, for example, 52002 + ... + 52548.

It is an arithmetic number, because the mean of its divisors is an integer number (1070244).

Almost surely, 2^28594425 is an apocalyptic number.

28594425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28594425 is a deficient number, since it is larger than the sum of its proper divisors (22777287).

28594425 is a wasteful number, since it uses less digits than its factorization.

28594425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 613 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 28594425 is about 5347.3755244980. The cubic root of 28594425 is about 305.7927063731.

The spelling of 28594425 in words is "twenty-eight million, five hundred ninety-four thousand, four hundred twenty-five".