28006145925 has 12 divisors (see below), whose sum is σ = 46303494720. Its totient is φ = 14936611120.

The previous prime is 28006145897. The next prime is 28006145927. The reversal of 28006145925 is 52954160082.

It is not a de Polignac number, because 28006145925 - 2⁶ = 28006145861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28006145927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186707565 + ... + 186707714.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624560).

Almost surely, 2^28006145925 is an apocalyptic number.

28006145925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28006145925 is a deficient number, since it is larger than the sum of its proper divisors (18297348795).

28006145925 is a wasteful number, since it uses less digits than its factorization.

28006145925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373415292 (or 373415287 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 28006145925 in words is "twenty-eight billion, six million, one hundred forty-five thousand, nine hundred twenty-five".