2188851550 has 24 divisors (see below), whose sum is σ = 4181301576. Its totient is φ = 851876640.

The previous prime is 2188851529. The next prime is 2188851583. The reversal of 2188851550 is 551588812.

It is a super-2 number, since 2×2188851550² = 9582142215874805000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2188851497 and 2188851506.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 589732 + ... + 593431.

It is an arithmetic number, because the mean of its divisors is an integer number (174220899).

Almost surely, 2^2188851550 is an apocalyptic number.

2188851550 is a deficient number, since it is larger than the sum of its proper divisors (1992450026).

2188851550 is a wasteful number, since it uses less digits than its factorization.

2188851550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183212 (or 1183207 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 43.

The square root of 2188851550 is about 46785.1637808398. The cubic root of 2188851550 is about 1298.3908195792.

The spelling of 2188851550 in words is "two billion, one hundred eighty-eight million, eight hundred fifty-one thousand, five hundred fifty".