27764206225 has 24 divisors (see below), whose sum is σ = 39472437888. Its totient is φ = 18977059200.

The previous prime is 27764206207. The next prime is 27764206237. The reversal of 27764206225 is 52260246772.

It is not a de Polignac number, because 27764206225 - 2⁹ = 27764205713 is a prime.

It is a super-2 number, since 2×27764206225² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 200644 + ... + 309493.

It is an arithmetic number, because the mean of its divisors is an integer number (1644684912).

Almost surely, 2^27764206225 is an apocalyptic number.

27764206225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27764206225 is a deficient number, since it is larger than the sum of its proper divisors (11708231663).

27764206225 is a wasteful number, since it uses less digits than its factorization.

27764206225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510465 (or 510460 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 27764206225 in words is "twenty-seven billion, seven hundred sixty-four million, two hundred six thousand, two hundred twenty-five".