550355145522 has 64 divisors (see below), whose sum is σ = 1358099253504. Its totient is φ = 144786585600.

The previous prime is 550355145517. The next prime is 550355145601. The reversal of 550355145522 is 225541553055.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1037883 + ... + 1475774.

It is an arithmetic number, because the mean of its divisors is an integer number (21220300836).

Almost surely, 2^550355145522 is an apocalyptic number.

550355145522 is an abundant number, since it is smaller than the sum of its proper divisors (807744107982).

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

550355145522 is a wasteful number, since it uses less digits than its factorization.

550355145522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514083.

The product of its (nonzero) digits is 750000, while the sum is 42.

Adding to 550355145522 its reverse (225541553055), we get a palindrome (775896698577).

The spelling of 550355145522 in words is "five hundred fifty billion, three hundred fifty-five million, one hundred forty-five thousand, five hundred twenty-two".