250090381 has 4 divisors (see below), whose sum is σ = 250255264. Its totient is φ = 249925500.

The previous prime is 250090343. The next prime is 250090409. The reversal of 250090381 is 183090052.

250090381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250090381 - 2⁹ = 250089869 is a prime.

It is a super-2 number, since 2×250090381² = 125090397337450322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250090681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80145 + ... + 83206.

It is an arithmetic number, because the mean of its divisors is an integer number (62563816).

Almost surely, 2^250090381 is an apocalyptic number.

It is an amenable number.

250090381 is a deficient number, since it is larger than the sum of its proper divisors (164883).

250090381 is a wasteful number, since it uses less digits than its factorization.

250090381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164882.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 250090381 is about 15814.2461407428. The cubic root of 250090381 is about 630.0364310838.

The spelling of 250090381 in words is "two hundred fifty million, ninety thousand, three hundred eighty-one".