55641413 has 2 divisors, whose sum is σ = 55641414. Its totient is φ = 55641412.

The previous prime is 55641407. The next prime is 55641473. The reversal of 55641413 is 31414655.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49098049 + 6543364 = 7007^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 55641413 - 2⁶ = 55641349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55641473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27820706 + 27820707.

It is an arithmetic number, because the mean of its divisors is an integer number (27820707).

Almost surely, 2^55641413 is an apocalyptic number.

It is an amenable number.

55641413 is a deficient number, since it is larger than the sum of its proper divisors (1).

55641413 is an equidigital number, since it uses as much as digits as its factorization.

55641413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 55641413 is about 7459.3171939528. The cubic root of 55641413 is about 381.7678774911.

The spelling of 55641413 in words is "fifty-five million, six hundred forty-one thousand, four hundred thirteen".