27530413 has 4 divisors (see below), whose sum is σ = 27628668. Its totient is φ = 27432160.

The previous prime is 27530407. The next prime is 27530441. The reversal of 27530413 is 31403572.

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 24980004 + 2550409 = 4998^2 + 1597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27530413 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 (27530213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48706 + ... + 49267.

It is an arithmetic number, because the mean of its divisors is an integer number (6907167).

Almost surely, 2^27530413 is an apocalyptic number.

It is an amenable number.

27530413 is a deficient number, since it is larger than the sum of its proper divisors (98255).

27530413 is an equidigital number, since it uses as much as digits as its factorization.

27530413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98254.

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

The square root of 27530413 is about 5246.9432053339. The cubic root of 27530413 is about 301.9517670730.

Adding to 27530413 its reverse (31403572), we get a palindrome (58933985).

The spelling of 27530413 in words is "twenty-seven million, five hundred thirty thousand, four hundred thirteen".