55158413 has 2 divisors, whose sum is σ = 55158414. Its totient is φ = 55158412.

The previous prime is 55158359. The next prime is 55158427. The reversal of 55158413 is 31485155.

55158413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53553124 + 1605289 = 7318^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 55158413 - 2¹⁸ = 54896269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55158413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55158443) 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, 27579206 + 27579207.

It is an arithmetic number, because the mean of its divisors is an integer number (27579207).

Almost surely, 2^55158413 is an apocalyptic number.

It is an amenable number.

55158413 is a deficient number, since it is larger than the sum of its proper divisors (1).

55158413 is an equidigital number, since it uses as much as digits as its factorization.

55158413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 32.

The square root of 55158413 is about 7426.8710100553. The cubic root of 55158413 is about 380.6600094972.

The spelling of 55158413 in words is "fifty-five million, one hundred fifty-eight thousand, four hundred thirteen".