553315025321 has 4 divisors (see below), whose sum is σ = 557671836672. Its totient is φ = 548958213972.

The previous prime is 553315025281. The next prime is 553315025323. The reversal of 553315025321 is 123520513355.

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 a de Polignac number, because none of the positive numbers 2^k-553315025321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553315025323) 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, 2178405485 + ... + 2178405738.

It is an arithmetic number, because the mean of its divisors is an integer number (139417959168).

Almost surely, 2^553315025321 is an apocalyptic number.

It is an amenable number.

553315025321 is a deficient number, since it is larger than the sum of its proper divisors (4356811351).

553315025321 is a wasteful number, since it uses less digits than its factorization.

553315025321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356811350.

The product of its (nonzero) digits is 67500, while the sum is 35.

Adding to 553315025321 its reverse (123520513355), we get a palindrome (676835538676).

The spelling of 553315025321 in words is "five hundred fifty-three billion, three hundred fifteen million, twenty-five thousand, three hundred twenty-one".