28297602425 has 24 divisors (see below), whose sum is σ = 36481435872. Its totient is φ = 21756240000.

The previous prime is 28297602383. The next prime is 28297602439. The reversal of 28297602425 is 52420679282.

It is not a de Polignac number, because 28297602425 - 2⁸ = 28297602169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28297602425.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 137351 + ... + 274700.

It is an arithmetic number, because the mean of its divisors is an integer number (1520059828).

Almost surely, 2^28297602425 is an apocalyptic number.

28297602425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28297602425 is a deficient number, since it is larger than the sum of its proper divisors (8183833447).

28297602425 is a wasteful number, since it uses less digits than its factorization.

28297602425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412169 (or 412164 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 28297602425 in words is "twenty-eight billion, two hundred ninety-seven million, six hundred two thousand, four hundred twenty-five".