27256359025 has 81 divisors (see below), whose sum is σ = 40527016131. Its totient is φ = 18131393280.

The previous prime is 27256359023. The next prime is 27256359049. The reversal of 27256359025 is 52095365272.

It is a happy number.

The square root of 27256359025 is 165095.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 20039516721 + 7216842304 = 141561^2 + 84952^2 .

It is not a de Polignac number, because 27256359025 - 2¹ = 27256359023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27256359023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 306251181 + ... + 306251269.

Almost surely, 2^27256359025 is an apocalyptic number.

27256359025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27256359025 is the 165095-th square number.

27256359025 is the 82548-th centered octagonal number.

It is an amenable number.

27256359025 is a deficient number, since it is larger than the sum of its proper divisors (13270657106).

27256359025 is an frugal number, since it uses more digits than its factorization.

27256359025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 46.

The spelling of 27256359025 in words is "twenty-seven billion, two hundred fifty-six million, three hundred fifty-nine thousand, twenty-five".