27195651353025 has 81 divisors (see below), whose sum is σ = 49457837055081. Its totient is φ = 14285111100480.

The previous prime is 27195651353023. The next prime is 27195651353051. The reversal of 27195651353025 is 52035315659172.

The square root of 27195651353025 is 5214945.

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

27195651353025 is a `hidden beast` number, since 2 + 7 + 1 + 9 + 56 + 51 + 3 + 530 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 751538149569 + 26444113203456 = 866913^2 + 5142384^2 .

It is not a de Polignac number, because 27195651353025 - 2¹ = 27195651353023 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27195651353023) 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, 5241017131 + ... + 5241022319.

Almost surely, 2^{27195651353025} is an apocalyptic number.

27195651353025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27195651353025 is the 5214945-th square number.

27195651353025 is the 2607473-rd centered octagonal number.

It is an amenable number.

27195651353025 is a deficient number, since it is larger than the sum of its proper divisors (22262185702056).

27195651353025 is an frugal number, since it uses more digits than its factorization.

27195651353025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10528 (or 5264 counting only the distinct ones).

The product of its (nonzero) digits is 8505000, while the sum is 54.

The spelling of 27195651353025 in words is "twenty-seven trillion, one hundred ninety-five billion, six hundred fifty-one million, three hundred fifty-three thousand, twenty-five".