250642091 has 8 divisors (see below), whose sum is σ = 301524480. Its totient is φ = 203528808.

The previous prime is 250642087. The next prime is 250642111. The reversal of 250642091 is 190246052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 250642091 - 2² = 250642087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250642001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942131 + ... + 942396.

It is an arithmetic number, because the mean of its divisors is an integer number (37690560).

Almost surely, 2^250642091 is an apocalyptic number.

250642091 is a deficient number, since it is larger than the sum of its proper divisors (50882389).

250642091 is a wasteful number, since it uses less digits than its factorization.

250642091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884553.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 250642091 is about 15831.6799803432. The cubic root of 250642091 is about 630.4993865241.

The spelling of 250642091 in words is "two hundred fifty million, six hundred forty-two thousand, ninety-one".