27152561 has 8 divisors (see below), whose sum is σ = 27954624. Its totient is φ = 26354160.

The previous prime is 27152513. The next prime is 27152597. The reversal of 27152561 is 16525172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27152561 - 2¹⁴ = 27136177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27152161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22766 + ... + 23928.

It is an arithmetic number, because the mean of its divisors is an integer number (3494328).

Almost surely, 2^27152561 is an apocalyptic number.

It is an amenable number.

27152561 is a deficient number, since it is larger than the sum of its proper divisors (802063).

27152561 is a wasteful number, since it uses less digits than its factorization.

27152561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its digits is 4200, while the sum is 29.

The square root of 27152561 is about 5210.8119328949. The cubic root of 27152561 is about 300.5639798322.

The spelling of 27152561 in words is "twenty-seven million, one hundred fifty-two thousand, five hundred sixty-one".