250480405 has 24 divisors (see below), whose sum is σ = 350428248. Its totient is φ = 171376128.

The previous prime is 250480393. The next prime is 250480423. The reversal of 250480405 is 504084052.

It can be written as a sum of positive squares in 4 ways, for example, as 1535121 + 248945284 = 1239^2 + 15778^2 .

It is not a de Polignac number, because 250480405 - 2⁷ = 250480277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150337 + ... + 151993.

It is an arithmetic number, because the mean of its divisors is an integer number (14601177).

Almost surely, 2^250480405 is an apocalyptic number.

It is an amenable number.

250480405 is a deficient number, since it is larger than the sum of its proper divisors (99947843).

250480405 is a wasteful number, since it uses less digits than its factorization.

250480405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293 (or 2286 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 250480405 is about 15826.5727496511. The cubic root of 250480405 is about 630.3637816702.

The spelling of 250480405 in words is "two hundred fifty million, four hundred eighty thousand, four hundred five".