550505530553 has 4 divisors (see below), whose sum is σ = 600551487888. Its totient is φ = 500459573220.

The previous prime is 550505530537. The next prime is 550505530571. The reversal of 550505530553 is 355035505055.

It is a happy number.

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 550505530553 - 2⁴ = 550505530537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 550505530553.

It is not an unprimeable number, because it can be changed into a prime (550505530583) 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, 25022978651 + ... + 25022978672.

It is an arithmetic number, because the mean of its divisors is an integer number (150137871972).

Almost surely, 2^550505530553 is an apocalyptic number.

It is an amenable number.

550505530553 is a deficient number, since it is larger than the sum of its proper divisors (50045957335).

550505530553 is a wasteful number, since it uses less digits than its factorization.

550505530553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50045957334.

The product of its (nonzero) digits is 703125, while the sum is 41.

The spelling of 550505530553 in words is "five hundred fifty billion, five hundred five million, five hundred thirty thousand, five hundred fifty-three".