250505780 has 48 divisors (see below), whose sum is σ = 602345856. Its totient is φ = 85726080.

The previous prime is 250505771. The next prime is 250505789. The reversal of 250505780 is 87505052.

It is a happy number.

250505780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (250505771) and next prime (250505789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250505789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91187 + ... + 93893.

It is an arithmetic number, because the mean of its divisors is an integer number (12548872).

Almost surely, 2^250505780 is an apocalyptic number.

250505780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250505780 is an abundant number, since it is smaller than the sum of its proper divisors (351840076).

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

250505780 is a wasteful number, since it uses less digits than its factorization.

250505780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 32.

The square root of 250505780 is about 15827.3743874339. The cubic root of 250505780 is about 630.3850673550.

The spelling of 250505780 in words is "two hundred fifty million, five hundred five thousand, seven hundred eighty".