250530018228 has 240 divisors, whose sum is σ = 766642060800. Its totient is φ = 69859086336.

The previous prime is 250530018217. The next prime is 250530018239. The reversal of 250530018228 is 822810035052.

250530018228 is a `hidden beast` number, since 25 + 0 + 530 + 0 + 1 + 82 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (250530018217) and next prime (250530018239).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 250530018192 and 250530018201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 23193973 + ... + 23204771.

It is an arithmetic number, because the mean of its divisors is an integer number (3194341920).

Almost surely, 2^250530018228 is an apocalyptic number.

250530018228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250530018228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383321030400).

250530018228 is an abundant number, since it is smaller than the sum of its proper divisors (516112042572).

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

250530018228 is a wasteful number, since it uses less digits than its factorization.

250530018228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11068 (or 11057 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 250530018228 in words is "two hundred fifty billion, five hundred thirty million, eighteen thousand, two hundred twenty-eight".