27880650625 has 15 divisors (see below), whose sum is σ = 34844878101. Its totient is φ = 22301181000.

The previous prime is 27880650619. The next prime is 27880650631. The reversal of 27880650625 is 52605608872.

The square root of 27880650625 is 166975.

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

It is an interprime number because it is at equal distance from previous prime (27880650619) and next prime (27880650631).

It can be written as a sum of positive squares in 2 ways, for example, as 2185843009 + 25694807616 = 46753^2 + 160296^2 .

It is not a de Polignac number, because 27880650625 - 2¹¹ = 27880648577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4171036 + ... + 4177714.

Almost surely, 2^27880650625 is an apocalyptic number.

27880650625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

27880650625 is the 166975-th square number.

27880650625 is the 83488-th centered octagonal number.

It is an amenable number.

27880650625 is a deficient number, since it is larger than the sum of its proper divisors (6964227476).

27880650625 is an frugal number, since it uses more digits than its factorization.

27880650625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13378 (or 6684 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

Multiplying 27880650625 by its sum of digits (49), we get a square (1366151880625 = 1168825²).

The spelling of 27880650625 in words is "twenty-seven billion, eight hundred eighty million, six hundred fifty thousand, six hundred twenty-five".