55413389 has 2 divisors, whose sum is σ = 55413390. Its totient is φ = 55413388.

The previous prime is 55413377. The next prime is 55413409. The reversal of 55413389 is 98331455.

It is a happy number.

55413389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36421225 + 18992164 = 6035^2 + 4358^2 .

It is a cyclic number.

It is not a de Polignac number, because 55413389 - 2⁸ = 55413133 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55413359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27706694 + 27706695.

It is an arithmetic number, because the mean of its divisors is an integer number (27706695).

Almost surely, 2^55413389 is an apocalyptic number.

It is an amenable number.

55413389 is a deficient number, since it is larger than the sum of its proper divisors (1).

55413389 is an equidigital number, since it uses as much as digits as its factorization.

55413389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 55413389 is about 7444.0169935325. The cubic root of 55413389 is about 381.2456559928.

The spelling of 55413389 in words is "fifty-five million, four hundred thirteen thousand, three hundred eighty-nine".