27680425 has 6 divisors (see below), whose sum is σ = 34323758. Its totient is φ = 22144320.

The previous prime is 27680423. The next prime is 27680449. The reversal of 27680425 is 52408672.

It can be written as a sum of positive squares in 3 ways, for example, as 2304 + 27678121 = 48^2 + 5261^2 .

It is not a de Polignac number, because 27680425 - 2¹ = 27680423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27680423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553584 + ... + 553633.

Almost surely, 2^27680425 is an apocalyptic number.

27680425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27680425 is a deficient number, since it is larger than the sum of its proper divisors (6643333).

27680425 is a wasteful number, since it uses less digits than its factorization.

27680425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107227 (or 1107222 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 27680425 is about 5261.2189652209. The cubic root of 27680425 is about 302.4992145325.

The spelling of 27680425 in words is "twenty-seven million, six hundred eighty thousand, four hundred twenty-five".