2195525844 has 48 divisors (see below), whose sum is σ = 5694673600. Its totient is φ = 731511648.

The previous prime is 2195525819. The next prime is 2195525903. The reversal of 2195525844 is 4485255912.

2195525844 is a `hidden beast` number, since 2 + 1 + 9 + 552 + 58 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2195525844.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401094 + ... + 406530.

Almost surely, 2^2195525844 is an apocalyptic number.

It is an amenable number.

2195525844 is an abundant number, since it is smaller than the sum of its proper divisors (3499147756).

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

2195525844 is a wasteful number, since it uses less digits than its factorization.

2195525844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9189 (or 9181 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 2195525844 is about 46856.4386610848. The cubic root of 2195525844 is about 1299.7091743914.

The spelling of 2195525844 in words is "two billion, one hundred ninety-five million, five hundred twenty-five thousand, eight hundred forty-four".