2188258556 has 24 divisors (see below), whose sum is σ = 4182121776. Its totient is φ = 993582720.

The previous prime is 2188258549. The next prime is 2188258561. The reversal of 2188258556 is 6558528812.

2188258556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14690 + ... + 67766.

It is an arithmetic number, because the mean of its divisors is an integer number (174255074).

Almost surely, 2^2188258556 is an apocalyptic number.

It is an amenable number.

2188258556 is a deficient number, since it is larger than the sum of its proper divisors (1993863220).

2188258556 is a wasteful number, since it uses less digits than its factorization.

2188258556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54029 (or 54027 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 50.

The square root of 2188258556 is about 46778.8259365282. The cubic root of 2188258556 is about 1298.2735575527.

The spelling of 2188258556 in words is "two billion, one hundred eighty-eight million, two hundred fifty-eight thousand, five hundred fifty-six".