551653500601 has 4 divisors (see below), whose sum is σ = 630461143552. Its totient is φ = 472845857652.

The previous prime is 551653500557. The next prime is 551653500613. The reversal of 551653500601 is 106005356155.

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 not a de Polignac number, because 551653500601 - 2⁷ = 551653500473 is a prime.

It is a super-3 number, since 3×551653500601³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551653500631) 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, 39403821465 + ... + 39403821478.

It is an arithmetic number, because the mean of its divisors is an integer number (157615285888).

Almost surely, 2^551653500601 is an apocalyptic number.

It is an amenable number.

551653500601 is a deficient number, since it is larger than the sum of its proper divisors (78807642951).

551653500601 is an equidigital number, since it uses as much as digits as its factorization.

551653500601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78807642950.

The product of its (nonzero) digits is 67500, while the sum is 37.

Adding to 551653500601 its reverse (106005356155), we get a palindrome (657658856756).

The spelling of 551653500601 in words is "five hundred fifty-one billion, six hundred fifty-three million, five hundred thousand, six hundred one".