2100725256 has 48 divisors (see below), whose sum is σ = 6109255440. Its totient is φ = 600206880.

The previous prime is 2100725243. The next prime is 2100725321. The reversal of 2100725256 is 6525270012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 891990 + ... + 894341.

It is an arithmetic number, because the mean of its divisors is an integer number (127276155).

Almost surely, 2^2100725256 is an apocalyptic number.

It is an amenable number.

2100725256 is an abundant number, since it is smaller than the sum of its proper divisors (4008530184).

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

2100725256 is a wasteful number, since it uses less digits than its factorization.

2100725256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786354 (or 1786343 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2100725256 is about 45833.6694581614. The cubic root of 2100725256 is about 1280.7265682932.

Adding to 2100725256 its reverse (6525270012), we get a palindrome (8625995268).

The spelling of 2100725256 in words is "two billion, one hundred million, seven hundred twenty-five thousand, two hundred fifty-six".