5555145220 has 48 divisors (see below), whose sum is σ = 12022457328. Its totient is φ = 2154539520.

The previous prime is 5555145217. The next prime is 5555145221. The reversal of 5555145220 is 225415555.

It can be written as a sum of positive squares in 8 ways, for example, as 360772036 + 5194373184 = 18994^2 + 72072^2 .

It is not an unprimeable number, because it can be changed into a prime (5555145221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204010 + ... + 229630.

It is an arithmetic number, because the mean of its divisors is an integer number (250467861).

Almost surely, 2^5555145220 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 5555145220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6011228664).

5555145220 is an abundant number, since it is smaller than the sum of its proper divisors (6467312108).

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

5555145220 is a wasteful number, since it uses less digits than its factorization.

5555145220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25960 (or 25958 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The square root of 5555145220 is about 74532.8465845764. The cubic root of 5555145220 is about 1771.0540095713.

The spelling of 5555145220 in words is "five billion, five hundred fifty-five million, one hundred forty-five thousand, two hundred twenty".