28056125001 has 8 divisors (see below), whose sum is σ = 37409241664. Its totient is φ = 18703545840.

The previous prime is 28056124991. The next prime is 28056125011. The reversal of 28056125001 is 10052165082.

It is an interprime number because it is at equal distance from previous prime (28056124991) and next prime (28056125011).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28056125001 - 2¹¹ = 28056122953 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 28056125001.

It is not an unprimeable number, because it can be changed into a prime (28056125011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9396 + ... + 237066.

It is an arithmetic number, because the mean of its divisors is an integer number (4676155208).

Almost surely, 2^28056125001 is an apocalyptic number.

It is an amenable number.

28056125001 is a deficient number, since it is larger than the sum of its proper divisors (9353116663).

28056125001 is a wasteful number, since it uses less digits than its factorization.

28056125001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268751.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 28056125001 in words is "twenty-eight billion, fifty-six million, one hundred twenty-five thousand, one".