2525125866 has 16 divisors (see below), whose sum is σ = 5133043488. Its totient is φ = 827910000.

The previous prime is 2525125829. The next prime is 2525125873. The reversal of 2525125866 is 6685215252.

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, 3449260 + ... + 3449991.

It is an arithmetic number, because the mean of its divisors is an integer number (320815218).

Almost surely, 2^2525125866 is an apocalyptic number.

2525125866 is an abundant number, since it is smaller than the sum of its proper divisors (2607917622).

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

2525125866 is a wasteful number, since it uses less digits than its factorization.

2525125866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6899317.

The product of its digits is 288000, while the sum is 42.

The square root of 2525125866 is about 50250.6305035071. The cubic root of 2525125866 is about 1361.7404666762.

The spelling of 2525125866 in words is "two billion, five hundred twenty-five million, one hundred twenty-five thousand, eight hundred sixty-six".