250405193 has 4 divisors (see below), whose sum is σ = 251357568. Its totient is φ = 249452820.

The previous prime is 250405151. The next prime is 250405213. The reversal of 250405193 is 391504052.

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 250405193 - 2¹⁶ = 250339657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250405093) 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, 475793 + ... + 476318.

It is an arithmetic number, because the mean of its divisors is an integer number (62839392).

Almost surely, 2^250405193 is an apocalyptic number.

It is an amenable number.

250405193 is a deficient number, since it is larger than the sum of its proper divisors (952375).

250405193 is an equidigital number, since it uses as much as digits as its factorization.

250405193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952374.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 250405193 is about 15824.1964408939. The cubic root of 250405193 is about 630.3006820345.

The spelling of 250405193 in words is "two hundred fifty million, four hundred five thousand, one hundred ninety-three".