250646401 has 4 divisors (see below), whose sum is σ = 254176704. Its totient is φ = 247116100.

The previous prime is 250646393. The next prime is 250646411. The reversal of 250646401 is 104646052.

250646401 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 250646401 - 2³ = 250646393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 250646401.

It is not an unprimeable number, because it can be changed into a prime (250646411) 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, 1765045 + ... + 1765186.

It is an arithmetic number, because the mean of its divisors is an integer number (63544176).

Almost surely, 2^250646401 is an apocalyptic number.

It is an amenable number.

250646401 is a deficient number, since it is larger than the sum of its proper divisors (3530303).

250646401 is an equidigital number, since it uses as much as digits as its factorization.

250646401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530302.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 250646401 is about 15831.8160992351. The cubic root of 250646401 is about 630.5030004911.

The spelling of 250646401 in words is "two hundred fifty million, six hundred forty-six thousand, four hundred one".