550592779905 has 72 divisors (see below), whose sum is σ = 1120550775552. Its totient is φ = 249347117376.

The previous prime is 550592779873. The next prime is 550592779909. The reversal of 550592779905 is 509977295055.

550592779905 is a `hidden beast` number, since 550 + 5 + 9 + 2 + 7 + 79 + 9 + 0 + 5 = 666.

It is not a de Polignac number, because 550592779905 - 2⁵ = 550592779873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (550592779909) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 930897 + ... + 1402766.

It is an arithmetic number, because the mean of its divisors is an integer number (15563205216).

Almost surely, 2^550592779905 is an apocalyptic number.

It is an amenable number.

550592779905 is an abundant number, since it is smaller than the sum of its proper divisors (569957995647).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550592779905 is a wasteful number, since it uses less digits than its factorization.

550592779905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333795 (or 2333785 counting only the distinct ones).

The product of its (nonzero) digits is 44651250, while the sum is 63.

The spelling of 550592779905 in words is "five hundred fifty billion, five hundred ninety-two million, seven hundred seventy-nine thousand, nine hundred five".