250000064 has 28 divisors (see below), whose sum is σ = 517666224. Its totient is φ = 119564544.

The previous prime is 250000019. The next prime is 250000073. The reversal of 250000064 is 460000052.

250000064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 249999997 and 250000051.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83447 + ... + 86390.

Almost surely, 2^250000064 is an apocalyptic number.

It is an amenable number.

250000064 is an abundant number, since it is smaller than the sum of its proper divisors (267666160).

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

250000064 is a wasteful number, since it uses less digits than its factorization.

250000064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169872 (or 169862 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 250000064 is about 15811.3903246995. The cubic root of 250000064 is about 629.9605787041.

The spelling of 250000064 in words is "two hundred fifty million, sixty-four", and thus it is an aban number.