27253213 has 4 divisors (see below), whose sum is σ = 29349628. Its totient is φ = 25156800.

The previous prime is 27253211. The next prime is 27253253. The reversal of 27253213 is 31235272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16144324 + 11108889 = 4018^2 + 3333^2 .

It is a cyclic number.

It is not a de Polignac number, because 27253213 - 2¹ = 27253211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27253211) 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, 1048188 + ... + 1048213.

It is an arithmetic number, because the mean of its divisors is an integer number (7337407).

Almost surely, 2^27253213 is an apocalyptic number.

It is an amenable number.

27253213 is a deficient number, since it is larger than the sum of its proper divisors (2096415).

27253213 is a wasteful number, since it uses less digits than its factorization.

27253213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096414.

The product of its digits is 2520, while the sum is 25.

The square root of 27253213 is about 5220.4609949697. The cubic root of 27253213 is about 300.9349093809.

Adding to 27253213 its reverse (31235272), we get a palindrome (58488485).

The spelling of 27253213 in words is "twenty-seven million, two hundred fifty-three thousand, two hundred thirteen".