55604413 has 2 divisors, whose sum is σ = 55604414. Its totient is φ = 55604412.

The previous prime is 55604407. The next prime is 55604429. The reversal of 55604413 is 31440655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34609689 + 20994724 = 5883^2 + 4582^2 .

It is a cyclic number.

It is not a de Polignac number, because 55604413 - 2²⁵ = 22049981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55604113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802206 + 27802207.

It is an arithmetic number, because the mean of its divisors is an integer number (27802207).

Almost surely, 2^55604413 is an apocalyptic number.

It is an amenable number.

55604413 is a deficient number, since it is larger than the sum of its proper divisors (1).

55604413 is an equidigital number, since it uses as much as digits as its factorization.

55604413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 55604413 is about 7456.8366617487. The cubic root of 55604413 is about 381.6832370356.

The spelling of 55604413 in words is "fifty-five million, six hundred four thousand, four hundred thirteen".