250031400220530 has 160 divisors (see below), whose sum is σ = 682388299669824. Its totient is φ = 65675345180544.

The previous prime is 250031400220489. The next prime is 250031400220549. The reversal of 250031400220530 is 35022004130052.

It is a happy number.

250031400220530 is a `hidden beast` number, since 2 + 5 + 0 + 0 + 3 + 1 + 400 + 220 + 5 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 250031400220494 and 250031400220503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 823286889 + ... + 823590531.

Almost surely, 2^{250031400220530} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250031400220530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341194149834912).

250031400220530 is an abundant number, since it is smaller than the sum of its proper divisors (432356899449294).

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

250031400220530 is a wasteful number, since it uses less digits than its factorization.

250031400220530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318902 (or 318893 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 250031400220530 its reverse (35022004130052), we get a palindrome (285053404350582).

The spelling of 250031400220530 in words is "two hundred fifty trillion, thirty-one billion, four hundred million, two hundred twenty thousand, five hundred thirty".