55349573 has 2 divisors, whose sum is σ = 55349574. Its totient is φ = 55349572.

The previous prime is 55349551. The next prime is 55349587. The reversal of 55349573 is 37594355.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48469444 + 6880129 = 6962^2 + 2623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55349573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55349573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55349473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27674786 + 27674787.

It is an arithmetic number, because the mean of its divisors is an integer number (27674787).

Almost surely, 2^55349573 is an apocalyptic number.

It is an amenable number.

55349573 is a deficient number, since it is larger than the sum of its proper divisors (1).

55349573 is an equidigital number, since it uses as much as digits as its factorization.

55349573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 283500, while the sum is 41.

The square root of 55349573 is about 7439.7293633572. The cubic root of 55349573 is about 381.0992478244.

The spelling of 55349573 in words is "fifty-five million, three hundred forty-nine thousand, five hundred seventy-three".