27052421 has 4 divisors (see below), whose sum is σ = 29511744. Its totient is φ = 24593100.

The previous prime is 27052411. The next prime is 27052451. The reversal of 27052421 is 12425072.

It is a happy number.

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 not a de Polignac number, because 27052421 - 2⁶ = 27052357 is a prime.

It is a super-2 number, since 2×27052421² = 1463666963922482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27052411) 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, 1229645 + ... + 1229666.

It is an arithmetic number, because the mean of its divisors is an integer number (7377936).

Almost surely, 2^27052421 is an apocalyptic number.

It is an amenable number.

27052421 is a deficient number, since it is larger than the sum of its proper divisors (2459323).

27052421 is a wasteful number, since it uses less digits than its factorization.

27052421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459322.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 27052421 is about 5201.1941897991. The cubic root of 27052421 is about 300.1940263374.

Adding to 27052421 its reverse (12425072), we get a palindrome (39477493).

The spelling of 27052421 in words is "twenty-seven million, fifty-two thousand, four hundred twenty-one".