553145449 has 16 divisors (see below), whose sum is σ = 594861120. Its totient is φ = 513293760.

The previous prime is 553145447. The next prime is 553145477. The reversal of 553145449 is 944541355.

It is a cyclic number.

It is not a de Polignac number, because 553145449 - 2¹ = 553145447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553145443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85954 + ... + 92164.

It is an arithmetic number, because the mean of its divisors is an integer number (37178820).

Almost surely, 2^553145449 is an apocalyptic number.

It is an amenable number.

553145449 is a deficient number, since it is larger than the sum of its proper divisors (41715671).

553145449 is a wasteful number, since it uses less digits than its factorization.

553145449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360.

The product of its digits is 216000, while the sum is 40.

The square root of 553145449 is about 23519.0443896005. The cubic root of 553145449 is about 820.8802014781.

The spelling of 553145449 in words is "five hundred fifty-three million, one hundred forty-five thousand, four hundred forty-nine".