28270334025 has 54 divisors (see below), whose sum is σ = 53789189402. Its totient is φ = 14190566400.

The previous prime is 28270334021. The next prime is 28270334077. The reversal of 28270334025 is 52043307282.

28270334025 is a `hidden beast` number, since 28 + 270 + 3 + 340 + 25 = 666.

It can be written as a sum of positive squares in 9 ways, for example, as 4633116489 + 23637217536 = 68067^2 + 153744^2 .

It is not a de Polignac number, because 28270334025 - 2² = 28270334021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28270334021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 152356 + ... + 282405.

Almost surely, 2^28270334025 is an apocalyptic number.

28270334025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28270334025 is a deficient number, since it is larger than the sum of its proper divisors (25518855377).

28270334025 is a wasteful number, since it uses less digits than its factorization.

28270334025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434811 (or 434786 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 28270334025 in words is "twenty-eight billion, two hundred seventy million, three hundred thirty-four thousand, twenty-five".