553420081673 has 4 divisors (see below), whose sum is σ = 561680082960. Its totient is φ = 545160080388.

The previous prime is 553420081637. The next prime is 553420081681. The reversal of 553420081673 is 376180024355.

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 a cyclic number.

It is not a de Polignac number, because 553420081673 - 2¹⁶ = 553420016137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553420081573) 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, 4130000543 + ... + 4130000676.

It is an arithmetic number, because the mean of its divisors is an integer number (140420020740).

Almost surely, 2^553420081673 is an apocalyptic number.

It is an amenable number.

553420081673 is a deficient number, since it is larger than the sum of its proper divisors (8260001287).

553420081673 is an equidigital number, since it uses as much as digits as its factorization.

553420081673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8260001286.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 553420081673 in words is "five hundred fifty-three billion, four hundred twenty million, eighty-one thousand, six hundred seventy-three".