2501639044 has 12 divisors (see below), whose sum is σ = 4437839644. Its totient is φ = 1233684864.

The previous prime is 2501638991. The next prime is 2501639057. The reversal of 2501639044 is 4409361052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1989160000 + 512479044 = 44600^2 + 22638^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4283337 + ... + 4283920.

Almost surely, 2^2501639044 is an apocalyptic number.

It is an amenable number.

2501639044 is a deficient number, since it is larger than the sum of its proper divisors (1936200600).

2501639044 is a wasteful number, since it uses less digits than its factorization.

2501639044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8567334 (or 8567332 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 2501639044 is about 50016.3877544151. The cubic root of 2501639044 is about 1357.5053468288.

The spelling of 2501639044 in words is "two billion, five hundred one million, six hundred thirty-nine thousand, forty-four".