2055575550 has 192 divisors, whose sum is σ = 6212173824. Its totient is φ = 439612800.

The previous prime is 2055575539. The next prime is 2055575563. The reversal of 2055575550 is 555755502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2055575499 and 2055575508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1134145 + ... + 1135955.

It is an arithmetic number, because the mean of its divisors is an integer number (32355072).

Almost surely, 2^2055575550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2055575550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3106086912).

2055575550 is an abundant number, since it is smaller than the sum of its proper divisors (4156598274).

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

2055575550 is a wasteful number, since it uses less digits than its factorization.

2055575550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1898 counting only the distinct ones).

The product of its (nonzero) digits is 218750, while the sum is 39.

The square root of 2055575550 is about 45338.4555317007. The cubic root of 2055575550 is about 1271.4847268709.

It can be divided in two parts, 205 and 5575550, that added together give a palindrome (5575755).

The spelling of 2055575550 in words is "two billion, fifty-five million, five hundred seventy-five thousand, five hundred fifty".