5220155216550 has 24 divisors (see below), whose sum is σ = 12945984937416. Its totient is φ = 1392041391040.

The previous prime is 5220155216533. The next prime is 5220155216569. The reversal of 5220155216550 is 556125510225.

It is a junction number, because it is equal to n+sod(n) for n = 5220155216499 and 5220155216508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17400517239 + ... + 17400517538.

It is an arithmetic number, because the mean of its divisors is an integer number (539416039059).

Almost surely, 2^{5220155216550} is an apocalyptic number.

5220155216550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5220155216550 is an abundant number, since it is smaller than the sum of its proper divisors (7725829720866).

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

5220155216550 is a wasteful number, since it uses less digits than its factorization.

5220155216550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34801034792 (or 34801034787 counting only the distinct ones).

The product of its (nonzero) digits is 150000, while the sum is 39.

The spelling of 5220155216550 in words is "five trillion, two hundred twenty billion, one hundred fifty-five million, two hundred sixteen thousand, five hundred fifty".