554441509 has 4 divisors (see below), whose sum is σ = 554675980. Its totient is φ = 554207040.

The previous prime is 554441507. The next prime is 554441543. The reversal of 554441509 is 905144455.

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 366148225 + 188293284 = 19135^2 + 13722^2 .

It is a cyclic number.

It is not a de Polignac number, because 554441509 - 2¹ = 554441507 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 (554441507) 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, 113652 + ... + 118429.

It is an arithmetic number, because the mean of its divisors is an integer number (138668995).

Almost surely, 2^554441509 is an apocalyptic number.

It is an amenable number.

554441509 is a deficient number, since it is larger than the sum of its proper divisors (234471).

554441509 is a wasteful number, since it uses less digits than its factorization.

554441509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234470.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 554441509 is about 23546.5816839727. The cubic root of 554441509 is about 821.5208287226.

It can be divided in two parts, 55444 and 1509, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 554441509 in words is "five hundred fifty-four million, four hundred forty-one thousand, five hundred nine".