553335649 has 4 divisors (see below), whose sum is σ = 555488964. Its totient is φ = 551182336.

The previous prime is 553335637. The next prime is 553335683. The reversal of 553335649 is 946533355.

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 416445649 + 136890000 = 20407^2 + 11700^2 .

It is a cyclic number.

It is not a de Polignac number, because 553335649 - 2¹⁷ = 553204577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553335149) 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, 1076272 + ... + 1076785.

It is an arithmetic number, because the mean of its divisors is an integer number (138872241).

Almost surely, 2^553335649 is an apocalyptic number.

It is an amenable number.

553335649 is a deficient number, since it is larger than the sum of its proper divisors (2153315).

553335649 is a wasteful number, since it uses less digits than its factorization.

553335649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153314.

The product of its digits is 729000, while the sum is 43.

The square root of 553335649 is about 23523.0875737009. The cubic root of 553335649 is about 820.9742777123.

The spelling of 553335649 in words is "five hundred fifty-three million, three hundred thirty-five thousand, six hundred forty-nine".