2887221525 has 24 divisors (see below), whose sum is σ = 4792145664. Its totient is φ = 1533849600.

The previous prime is 2887221497. The next prime is 2887221563. The reversal of 2887221525 is 5251227882.

It is not a de Polignac number, because 2887221525 - 2⁷ = 2887221397 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 55621 + ... + 94170.

It is an arithmetic number, because the mean of its divisors is an integer number (199672736).

Almost surely, 2^2887221525 is an apocalyptic number.

2887221525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2887221525 is a deficient number, since it is larger than the sum of its proper divisors (1904924139).

2887221525 is a wasteful number, since it uses less digits than its factorization.

2887221525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150061 (or 150056 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 2887221525 is about 53732.8719221298. The cubic root of 2887221525 is about 1423.9455048805.

The spelling of 2887221525 in words is "two billion, eight hundred eighty-seven million, two hundred twenty-one thousand, five hundred twenty-five".