250113522540 has 192 divisors, whose sum is σ = 841174548480. Its totient is φ = 54289509120.

The previous prime is 250113522511. The next prime is 250113522559. The reversal of 250113522540 is 45225311052.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 250113522498 and 250113522507.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1249605 + ... + 1435875.

It is an arithmetic number, because the mean of its divisors is an integer number (4381117440).

Almost surely, 2^250113522540 is an apocalyptic number.

250113522540 is a gapful number since it is divisible by the number (20) 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 250113522540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420587274240).

250113522540 is an abundant number, since it is smaller than the sum of its proper divisors (591061025940).

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

250113522540 is a wasteful number, since it uses less digits than its factorization.

250113522540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186452 (or 186450 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 250113522540 its reverse (45225311052), we get a palindrome (295338833592).

The spelling of 250113522540 in words is "two hundred fifty billion, one hundred thirteen million, five hundred twenty-two thousand, five hundred forty".