550530726517 has 4 divisors (see below), whose sum is σ = 559861755840. Its totient is φ = 541199697196.

The previous prime is 550530726481. The next prime is 550530726521. The reversal of 550530726517 is 715627035055.

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 550530726517 - 2²³ = 550522337909 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 (550530726527) 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, 4665514573 + ... + 4665514690.

It is an arithmetic number, because the mean of its divisors is an integer number (139965438960).

Almost surely, 2^550530726517 is an apocalyptic number.

It is an amenable number.

550530726517 is a deficient number, since it is larger than the sum of its proper divisors (9331029323).

550530726517 is an equidigital number, since it uses as much as digits as its factorization.

550530726517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331029322.

The product of its (nonzero) digits is 1102500, while the sum is 46.

The spelling of 550530726517 in words is "five hundred fifty billion, five hundred thirty million, seven hundred twenty-six thousand, five hundred seventeen".