250005128 has 32 divisors (see below), whose sum is σ = 497093760. Its totient is φ = 117469440.

The previous prime is 250005127. The next prime is 250005131. The reversal of 250005128 is 821500052.

250005128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (250005121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139325 + ... + 141107.

It is an arithmetic number, because the mean of its divisors is an integer number (15534180).

Almost surely, 2^250005128 is an apocalyptic number.

It is an amenable number.

250005128 is a deficient number, since it is larger than the sum of its proper divisors (247088632).

250005128 is a wasteful number, since it uses less digits than its factorization.

250005128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2837 (or 2833 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 250005128 is about 15811.5504616088. The cubic root of 250005128 is about 629.9648321681.

The spelling of 250005128 in words is "two hundred fifty million, five thousand, one hundred twenty-eight".