550105101520 has 160 divisors (see below), whose sum is σ = 1474449379200. Its totient is φ = 189163579392.

The previous prime is 550105101509. The next prime is 550105101547. The reversal of 550105101520 is 25101501055.

It is a congruent number.

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, 929914 + ... + 1401766.

It is an arithmetic number, because the mean of its divisors is an integer number (9215308620).

Almost surely, 2^550105101520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550105101520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737224689600).

550105101520 is an abundant number, since it is smaller than the sum of its proper divisors (924344277680).

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

550105101520 is a wasteful number, since it uses less digits than its factorization.

550105101520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471957 (or 471951 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 25.

Adding to 550105101520 its reverse (25101501055), we get a palindrome (575206602575).

The spelling of 550105101520 in words is "five hundred fifty billion, one hundred five million, one hundred one thousand, five hundred twenty".