28282575025 has 18 divisors (see below), whose sum is σ = 36661505510. Its totient is φ = 21642308160.

The previous prime is 28282574987. The next prime is 28282575037. The reversal of 28282575025 is 52057528282.

It can be written as a sum of positive squares in 3 ways, for example, as 184769649 + 28097805376 = 13593^2 + 167624^2 .

It is not a de Polignac number, because 28282575025 - 2¹⁷ = 28282443953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1056060 + ... + 1082509.

Almost surely, 2^28282575025 is an apocalyptic number.

28282575025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28282575025 is a deficient number, since it is larger than the sum of its proper divisors (8378930485).

28282575025 is a wasteful number, since it uses less digits than its factorization.

28282575025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138625 (or 2138597 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 46.

The spelling of 28282575025 in words is "twenty-eight billion, two hundred eighty-two million, five hundred seventy-five thousand, twenty-five".