27550413 has 48 divisors (see below), whose sum is σ = 46006272. Its totient is φ = 15732000.

The previous prime is 27550379. The next prime is 27550447. The reversal of 27550413 is 31405572.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27550379) and next prime (27550447).

It is not a de Polignac number, because 27550413 - 2⁶ = 27550349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144148 + ... + 144338.

It is an arithmetic number, because the mean of its divisors is an integer number (958464).

Almost surely, 2^27550413 is an apocalyptic number.

It is an amenable number.

27550413 is a deficient number, since it is larger than the sum of its proper divisors (18455859).

27550413 is a wasteful number, since it uses less digits than its factorization.

27550413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 27550413 is about 5248.8487309123. The cubic root of 27550413 is about 302.0248689372.

Adding to 27550413 its reverse (31405572), we get a palindrome (58955985).

The spelling of 27550413 in words is "twenty-seven million, five hundred fifty thousand, four hundred thirteen".