250421641 has 8 divisors (see below), whose sum is σ = 260225280. Its totient is φ = 240695952.

The previous prime is 250421603. The next prime is 250421651. The reversal of 250421641 is 146124052.

It is a happy number.

250421641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-250421641 is a prime.

It is a super-2 number, since 2×250421641² = 125421996562265762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250421651) 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, 12895 + ... + 25828.

It is an arithmetic number, because the mean of its divisors is an integer number (32528160).

Almost surely, 2^250421641 is an apocalyptic number.

It is an amenable number.

250421641 is a deficient number, since it is larger than the sum of its proper divisors (9803639).

250421641 is a wasteful number, since it uses less digits than its factorization.

250421641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38975.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 250421641 is about 15824.7161427938. The cubic root of 250421641 is about 630.3144822790.

Adding to 250421641 its reverse (146124052), we get a palindrome (396545693).

The spelling of 250421641 in words is "two hundred fifty million, four hundred twenty-one thousand, six hundred forty-one".