27525413 has 4 divisors (see below), whose sum is σ = 27635328. Its totient is φ = 27415500.

The previous prime is 27525383. The next prime is 27525419. The reversal of 27525413 is 31452572.

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 27525413 - 2⁶ = 27525349 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 (27525419) 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, 54581 + ... + 55082.

It is an arithmetic number, because the mean of its divisors is an integer number (6908832).

Almost surely, 2^27525413 is an apocalyptic number.

It is an amenable number.

27525413 is a deficient number, since it is larger than the sum of its proper divisors (109915).

27525413 is a wasteful number, since it uses less digits than its factorization.

27525413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109914.

The product of its digits is 8400, while the sum is 29.

The square root of 27525413 is about 5246.4667158003. The cubic root of 27525413 is about 301.9334860754.

Adding to 27525413 its reverse (31452572), we get a palindrome (58977985).

The spelling of 27525413 in words is "twenty-seven million, five hundred twenty-five thousand, four hundred thirteen".