2055188490 has 16 divisors (see below), whose sum is σ = 4932452448. Its totient is φ = 548050256.

The previous prime is 2055188489. The next prime is 2055188503. The reversal of 2055188490 is 948815502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34253112 + ... + 34253171.

It is an arithmetic number, because the mean of its divisors is an integer number (308278278).

Almost surely, 2^2055188490 is an apocalyptic number.

2055188490 is an abundant number, since it is smaller than the sum of its proper divisors (2877263958).

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

2055188490 is a wasteful number, since it uses less digits than its factorization.

2055188490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68506293.

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 2055188490 is about 45334.1867689275. The cubic root of 2055188490 is about 1271.4049160086.

The spelling of 2055188490 in words is "two billion, fifty-five million, one hundred eighty-eight thousand, four hundred ninety".