552565321501 has 4 divisors (see below), whose sum is σ = 554666330592. Its totient is φ = 550464312412.

The previous prime is 552565321489. The next prime is 552565321507. The reversal of 552565321501 is 105123565255.

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-552565321501 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552565321507) 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, 1050504151 + ... + 1050504676.

It is an arithmetic number, because the mean of its divisors is an integer number (138666582648).

Almost surely, 2^552565321501 is an apocalyptic number.

It is an amenable number.

552565321501 is a deficient number, since it is larger than the sum of its proper divisors (2101009091).

552565321501 is a wasteful number, since it uses less digits than its factorization.

552565321501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101009090.

The product of its (nonzero) digits is 225000, while the sum is 40.

Adding to 552565321501 its reverse (105123565255), we get a palindrome (657688886756).

The spelling of 552565321501 in words is "five hundred fifty-two billion, five hundred sixty-five million, three hundred twenty-one thousand, five hundred one".