554979409 has 4 divisors (see below), whose sum is σ = 574116660. Its totient is φ = 535842160.

The previous prime is 554979353. The next prime is 554979437. The reversal of 554979409 is 904979455.

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 172659600 + 382319809 = 13140^2 + 19553^2 .

It is a cyclic number.

It is not a de Polignac number, because 554979409 - 2¹¹ = 554977361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (554979449) 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, 9568582 + ... + 9568639.

It is an arithmetic number, because the mean of its divisors is an integer number (143529165).

Almost surely, 2^554979409 is an apocalyptic number.

It is an amenable number.

554979409 is a deficient number, since it is larger than the sum of its proper divisors (19137251).

554979409 is a wasteful number, since it uses less digits than its factorization.

554979409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19137250.

The product of its (nonzero) digits is 2041200, while the sum is 52.

The square root of 554979409 is about 23558.0009550895. Note that the first 3 decimals coincide. The cubic root of 554979409 is about 821.7864132309.

The spelling of 554979409 in words is "five hundred fifty-four million, nine hundred seventy-nine thousand, four hundred nine".