250505543420 has 24 divisors (see below), whose sum is σ = 573885427248. Its totient is φ = 91092924800.

The previous prime is 250505543419. The next prime is 250505543443. The reversal of 250505543420 is 24345505052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569330561 + ... + 569331000.

It is an arithmetic number, because the mean of its divisors is an integer number (23911892802).

Almost surely, 2^250505543420 is an apocalyptic number.

250505543420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250505543420 is an abundant number, since it is smaller than the sum of its proper divisors (323379883828).

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

250505543420 is a wasteful number, since it uses less digits than its factorization.

250505543420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138661581 (or 1138661579 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 35.

The spelling of 250505543420 in words is "two hundred fifty billion, five hundred five million, five hundred forty-three thousand, four hundred twenty".