28054714201625 has 16 divisors (see below), whose sum is σ = 35013549402000. Its totient is φ = 22442959772800.

The previous prime is 28054714201601. The next prime is 28054714201649. The reversal of 28054714201625 is 52610241745082.

It is an interprime number because it is at equal distance from previous prime (28054714201601) and next prime (28054714201649).

It can be written as a sum of positive squares in 8 ways, for example, as 5695916838544 + 22358797363081 = 2386612^2 + 4728509^2 .

It is a de Polignac number, because none of the positive numbers 2^k-28054714201625 is a prime.

It is a super-2 number, since 2×28054714201625² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28054714201625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575444 + ... + 7512693.

It is an arithmetic number, because the mean of its divisors is an integer number (2188346837625).

Almost surely, 2^{28054714201625} is an apocalyptic number.

28054714201625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28054714201625 is a deficient number, since it is larger than the sum of its proper divisors (6958835200375).

28054714201625 is an equidigital number, since it uses as much as digits as its factorization.

28054714201625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115901 (or 8115891 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 28054714201625 in words is "twenty-eight trillion, fifty-four billion, seven hundred fourteen million, two hundred one thousand, six hundred twenty-five".