27252945 has 24 divisors (see below), whose sum is σ = 47361600. Its totient is φ = 14497056.

The previous prime is 27252919. The next prime is 27252947. The reversal of 27252945 is 54925272.

It is a happy number.

It is not a de Polignac number, because 27252945 - 2⁵ = 27252913 is a prime.

It is a super-2 number, since 2×27252945² = 1485446022346050, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (27252947) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29196 + ... + 30114.

It is an arithmetic number, because the mean of its divisors is an integer number (1973400).

Almost surely, 2^27252945 is an apocalyptic number.

It is an amenable number.

27252945 is a deficient number, since it is larger than the sum of its proper divisors (20108655).

27252945 is a wasteful number, since it uses less digits than its factorization.

27252945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589 (or 1586 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 27252945 is about 5220.4353266754. The cubic root of 27252945 is about 300.9339229428.

The spelling of 27252945 in words is "twenty-seven million, two hundred fifty-two thousand, nine hundred forty-five".