27216750625 has 15 divisors (see below), whose sum is σ = 34015206181. Its totient is φ = 21770101000.

The previous prime is 27216750611. The next prime is 27216750629. The reversal of 27216750625 is 52605761272.

The square root of 27216750625 is 164975.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2133793249 + 25082957376 = 46193^2 + 158376^2 .

It is not a de Polignac number, because 27216750625 - 2⁷ = 27216750497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27216750629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4121076 + ... + 4127674.

Almost surely, 2^27216750625 is an apocalyptic number.

27216750625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27216750625 is the 164975-th square number.

27216750625 is the 82488-th centered octagonal number.

It is an amenable number.

27216750625 is a deficient number, since it is larger than the sum of its proper divisors (6798455556).

27216750625 is an frugal number, since it uses more digits than its factorization.

27216750625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13218 (or 6604 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 27216750625 in words is "twenty-seven billion, two hundred sixteen million, seven hundred fifty thousand, six hundred twenty-five".