28775024025 has 48 divisors (see below), whose sum is σ = 52024170240. Its totient is φ = 13918062400.

The previous prime is 28775024017. The next prime is 28775024027. The reversal of 28775024025 is 52042057782.

It is not a de Polignac number, because 28775024025 - 2³ = 28775024017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28775024027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304054 + ... + 387296.

It is an arithmetic number, because the mean of its divisors is an integer number (1083836880).

Almost surely, 2^28775024025 is an apocalyptic number.

28775024025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28775024025 is a deficient number, since it is larger than the sum of its proper divisors (23249146215).

28775024025 is a wasteful number, since it uses less digits than its factorization.

28775024025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83686 (or 83681 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 42.

The spelling of 28775024025 in words is "twenty-eight billion, seven hundred seventy-five million, twenty-four thousand, twenty-five".