28567751025 has 24 divisors (see below), whose sum is σ = 51525836064. Its totient is φ = 13851030400.

The previous prime is 28567751011. The next prime is 28567751053. The reversal of 28567751025 is 52015776582.

It is not a de Polignac number, because 28567751025 - 2⁶ = 28567750961 is a prime.

It is a super-2 number, since 2×28567751025² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17312964 + ... + 17314613.

It is an arithmetic number, because the mean of its divisors is an integer number (2146909836).

Almost surely, 2^28567751025 is an apocalyptic number.

28567751025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28567751025 is a deficient number, since it is larger than the sum of its proper divisors (22958085039).

28567751025 is a wasteful number, since it uses less digits than its factorization.

28567751025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34627601 (or 34627596 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 28567751025 in words is "twenty-eight billion, five hundred sixty-seven million, seven hundred fifty-one thousand, twenty-five".