27256361 has 4 divisors (see below), whose sum is σ = 29734224. Its totient is φ = 24778500.

The previous prime is 27256331. The next prime is 27256373. The reversal of 27256361 is 16365272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27256361 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27256301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238915 + ... + 1238936.

It is an arithmetic number, because the mean of its divisors is an integer number (7433556).

Almost surely, 2^27256361 is an apocalyptic number.

It is an amenable number.

27256361 is a deficient number, since it is larger than the sum of its proper divisors (2477863).

27256361 is a wasteful number, since it uses less digits than its factorization.

27256361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477862.

The product of its digits is 15120, while the sum is 32.

The square root of 27256361 is about 5220.7624922036. The cubic root of 27256361 is about 300.9464958633.

The spelling of 27256361 in words is "twenty-seven million, two hundred fifty-six thousand, three hundred sixty-one".