553520989 has 4 divisors (see below), whose sum is σ = 632595424. Its totient is φ = 474446556.

The previous prime is 553520959. The next prime is 553521019. The reversal of 553520989 is 989025355.

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 an interprime number because it is at equal distance from previous prime (553520959) and next prime (553521019).

It is a cyclic number.

It is not a de Polignac number, because 553520989 - 2⁷ = 553520861 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 (553520909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39537207 + ... + 39537220.

It is an arithmetic number, because the mean of its divisors is an integer number (158148856).

Almost surely, 2^553520989 is an apocalyptic number.

It is an amenable number.

553520989 is a deficient number, since it is larger than the sum of its proper divisors (79074435).

553520989 is an equidigital number, since it uses as much as digits as its factorization.

553520989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79074434.

The product of its (nonzero) digits is 486000, while the sum is 46.

The square root of 553520989 is about 23527.0267777295. The cubic root of 553520989 is about 821.0659293692.

The spelling of 553520989 in words is "five hundred fifty-three million, five hundred twenty thousand, nine hundred eighty-nine".