27500027775025 has 24 divisors (see below), whose sum is σ = 36776259196544. Its totient is φ = 20278323777600.

The previous prime is 27500027774987. The next prime is 27500027775047. The reversal of 27500027775025 is 52057772000572.

It is not a de Polignac number, because 27500027775025 - 2²⁵ = 27499994220593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27500027775025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61002249 + ... + 61451398.

Almost surely, 2^{27500027775025} is an apocalyptic number.

27500027775025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27500027775025 is a deficient number, since it is larger than the sum of its proper divisors (9276231421519).

27500027775025 is a wasteful number, since it uses less digits than its factorization.

27500027775025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122454361 (or 122454356 counting only the distinct ones).

The product of its (nonzero) digits is 2401000, while the sum is 49.

Adding to 27500027775025 its reverse (52057772000572), we get a palindrome (79557799775597).

The spelling of 27500027775025 in words is "twenty-seven trillion, five hundred billion, twenty-seven million, seven hundred seventy-five thousand, twenty-five".