27025645 has 16 divisors (see below), whose sum is σ = 33795072. Its totient is φ = 20724480.

The previous prime is 27025643. The next prime is 27025697. The reversal of 27025645 is 54652072.

It is not a de Polignac number, because 27025645 - 2¹ = 27025643 is a prime.

It is a super-3 number, since 3×27025645³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27025643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16744 + ... + 18286.

It is an arithmetic number, because the mean of its divisors is an integer number (2112192).

Almost surely, 2^27025645 is an apocalyptic number.

It is an amenable number.

27025645 is a deficient number, since it is larger than the sum of its proper divisors (6769427).

27025645 is a wasteful number, since it uses less digits than its factorization.

27025645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 27025645 is about 5198.6195282979. The cubic root of 27025645 is about 300.0949514257.

The spelling of 27025645 in words is "twenty-seven million, twenty-five thousand, six hundred forty-five".