605204553 has 4 divisors (see below), whose sum is σ = 806939408. Its totient is φ = 403469700.

The previous prime is 605204531. The next prime is 605204557. The reversal of 605204553 is 355402506.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 605204553 - 2⁵ = 605204521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 605204553.

It is not an unprimeable number, because it can be changed into a prime (605204557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100867423 + ... + 100867428.

It is an arithmetic number, because the mean of its divisors is an integer number (201734852).

Almost surely, 2^605204553 is an apocalyptic number.

It is an amenable number.

605204553 is a deficient number, since it is larger than the sum of its proper divisors (201734855).

605204553 is a wasteful number, since it uses less digits than its factorization.

605204553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201734854.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 605204553 is about 24600.9055321141. The cubic root of 605204553 is about 845.8643644084.

The spelling of 605204553 in words is "six hundred five million, two hundred four thousand, five hundred fifty-three".