250000030 has 16 divisors (see below), whose sum is σ = 514285920. Its totient is φ = 85714272.

The previous prime is 250000019. The next prime is 250000073. The reversal of 250000030 is 30000052.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 249999971 and 250000016.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1785645 + ... + 1785784.

It is an arithmetic number, because the mean of its divisors is an integer number (32142870).

Almost surely, 2^250000030 is an apocalyptic number.

250000030 is an abundant number, since it is smaller than the sum of its proper divisors (264285890).

250000030 is a wasteful number, since it uses less digits than its factorization.

250000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571443.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 250000030 is about 15811.3892495252. The cubic root of 250000030 is about 629.9605501459.

Adding to 250000030 its reverse (30000052), we get a palindrome (280000082).

The spelling of 250000030 in words is "two hundred fifty million, thirty", and thus it is an aban number.