250454945 has 16 divisors (see below), whose sum is σ = 329776272. Its totient is φ = 181459200.

The previous prime is 250454929. The next prime is 250454947. The reversal of 250454945 is 549454052.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5094049 + 245360896 = 2257^2 + 15664^2 .

It is not a de Polignac number, because 250454945 - 2⁴ = 250454929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250454899 and 250454908.

It is not an unprimeable number, because it can be changed into a prime (250454947) 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, 32906 + ... + 39795.

It is an arithmetic number, because the mean of its divisors is an integer number (20611017).

Almost surely, 2^250454945 is an apocalyptic number.

It is an amenable number.

250454945 is a deficient number, since it is larger than the sum of its proper divisors (79321327).

250454945 is a wasteful number, since it uses less digits than its factorization.

250454945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72772.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 250454945 is about 15825.7683857688. The cubic root of 250454945 is about 630.3424232388.

The spelling of 250454945 in words is "two hundred fifty million, four hundred fifty-four thousand, nine hundred forty-five".