2505529856 has 40 divisors (see below), whose sum is σ = 5080954560. Its totient is φ = 1234050048.

The previous prime is 2505529847. The next prime is 2505529861. The reversal of 2505529856 is 6589255052.

It is a self number, because there is not a number n which added to its sum of digits gives 2505529856.

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 3 ways as a sum of consecutive naturals, for example, 2216 + ... + 70823.

It is an arithmetic number, because the mean of its divisors is an integer number (127023864).

Almost surely, 2^2505529856 is an apocalyptic number.

It is an amenable number.

2505529856 is an abundant number, since it is smaller than the sum of its proper divisors (2575424704).

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

2505529856 is an frugal number, since it uses more digits than its factorization.

2505529856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73124 (or 73108 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 47.

The square root of 2505529856 is about 50055.2680144658. The cubic root of 2505529856 is about 1358.2087606167.

The spelling of 2505529856 in words is "two billion, five hundred five million, five hundred twenty-nine thousand, eight hundred fifty-six".