2189522526 has 16 divisors (see below), whose sum is σ = 4381498128. Its totient is φ = 729432000.

The previous prime is 2189522519. The next prime is 2189522539. The reversal of 2189522526 is 6252259812.

It is a super-2 number, since 2×2189522526² = 9588017783722841352, which contains 22 as substring.

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, 90505 + ... + 112116.

It is an arithmetic number, because the mean of its divisors is an integer number (273843633).

Almost surely, 2^2189522526 is an apocalyptic number.

2189522526 is an abundant number, since it is smaller than the sum of its proper divisors (2191975602).

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

2189522526 is a wasteful number, since it uses less digits than its factorization.

2189522526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204427.

The product of its digits is 172800, while the sum is 42.

The square root of 2189522526 is about 46792.3340516371. The cubic root of 2189522526 is about 1298.5234766759.

The spelling of 2189522526 in words is "two billion, one hundred eighty-nine million, five hundred twenty-two thousand, five hundred twenty-six".