2501645268 has 36 divisors (see below), whose sum is σ = 6200741792. Its totient is φ = 784828800.

The previous prime is 2501645261. The next prime is 2501645269. The reversal of 2501645268 is 8625461052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501645261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357208 + ... + 364143.

Almost surely, 2^2501645268 is an apocalyptic number.

It is an amenable number.

2501645268 is an abundant number, since it is smaller than the sum of its proper divisors (3699096524).

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

2501645268 is a wasteful number, since it uses less digits than its factorization.

2501645268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721392 (or 721373 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 2501645268 is about 50016.4499739836. The cubic root of 2501645268 is about 1357.5064726382.

The spelling of 2501645268 in words is "two billion, five hundred one million, six hundred forty-five thousand, two hundred sixty-eight".