555041605 has 4 divisors (see below), whose sum is σ = 666049932. Its totient is φ = 444033280.

The previous prime is 555041603. The next prime is 555041611. The reversal of 555041605 is 506140555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147889921 + 407151684 = 12161^2 + 20178^2 .

It is not a de Polignac number, because 555041605 - 2¹ = 555041603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555041603) 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 in 3 ways as a sum of consecutive naturals, for example, 55504156 + ... + 55504165.

It is an arithmetic number, because the mean of its divisors is an integer number (166512483).

Almost surely, 2^555041605 is an apocalyptic number.

It is an amenable number.

555041605 is a deficient number, since it is larger than the sum of its proper divisors (111008327).

555041605 is a wasteful number, since it uses less digits than its factorization.

555041605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111008326.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 555041605 is about 23559.3209791793. The cubic root of 555041605 is about 821.8171110176.

The spelling of 555041605 in words is "five hundred fifty-five million, forty-one thousand, six hundred five".