27061895025 has 81 divisors (see below), whose sum is σ = 53331380193. Its totient is φ = 13107758400.

The previous prime is 27061895023. The next prime is 27061895039. The reversal of 27061895025 is 52059816072.

The square root of 27061895025 is 164505.

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

27061895025 is a `hidden beast` number, since 2 + 7 + 0 + 61 + 89 + 502 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1803785841 + 25258109184 = 42471^2 + 158928^2 .

It is not a de Polignac number, because 27061895025 - 2¹ = 27061895023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (27061895023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 27142827 + ... + 27143823.

Almost surely, 2^27061895025 is an apocalyptic number.

27061895025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27061895025 is the 164505-th square number.

27061895025 is the 82253-rd centered octagonal number.

It is an amenable number.

27061895025 is a deficient number, since it is larger than the sum of its proper divisors (26269485168).

27061895025 is an equidigital number, since it uses as much as digits as its factorization.

27061895025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 27061895025 in words is "twenty-seven billion, sixty-one million, eight hundred ninety-five thousand, twenty-five".