550521111305 has 32 divisors (see below), whose sum is σ = 730681233408. Its totient is φ = 394857547200.

The previous prime is 550521111241. The next prime is 550521111307. The reversal of 550521111305 is 503111125055.

It is not a de Polignac number, because 550521111305 - 2⁶ = 550521111241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550521111307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102610 + ... + 1522100.

It is an arithmetic number, because the mean of its divisors is an integer number (22833788544).

Almost surely, 2^550521111305 is an apocalyptic number.

550521111305 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550521111305 is a deficient number, since it is larger than the sum of its proper divisors (180160122103).

550521111305 is a wasteful number, since it uses less digits than its factorization.

550521111305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419837.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 550521111305 in words is "five hundred fifty billion, five hundred twenty-one million, one hundred eleven thousand, three hundred five".