2055188554 has 8 divisors (see below), whose sum is σ = 3084602400. Its totient is φ = 1026987756.

The previous prime is 2055188539. The next prime is 2055188557. The reversal of 2055188554 is 4558815502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2055188554² = 8447599984985221832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2055188554.

It is not an unprimeable number, because it can be changed into a prime (2055188557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299014 + ... + 305809.

It is an arithmetic number, because the mean of its divisors is an integer number (385575300).

Almost surely, 2^2055188554 is an apocalyptic number.

2055188554 is a deficient number, since it is larger than the sum of its proper divisors (1029413846).

2055188554 is a wasteful number, since it uses less digits than its factorization.

2055188554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606524.

The product of its (nonzero) digits is 320000, while the sum is 43.

The square root of 2055188554 is about 45334.1874747965. The cubic root of 2055188554 is about 1271.4049292061.

The spelling of 2055188554 in words is "two billion, fifty-five million, one hundred eighty-eight thousand, five hundred fifty-four".