250420403 has 8 divisors (see below), whose sum is σ = 257471280. Its totient is φ = 243384480.

The previous prime is 250420397. The next prime is 250420409. The reversal of 250420403 is 304024052.

It is an interprime number because it is at equal distance from previous prime (250420397) and next prime (250420409).

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-250420403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250420409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36068 + ... + 42446.

It is an arithmetic number, because the mean of its divisors is an integer number (32183910).

Almost surely, 2^250420403 is an apocalyptic number.

250420403 is a deficient number, since it is larger than the sum of its proper divisors (7050877).

250420403 is a wasteful number, since it uses less digits than its factorization.

250420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7477.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 250420403 is about 15824.6770267200. The cubic root of 250420403 is about 630.3134435900.

Adding to 250420403 its reverse (304024052), we get a palindrome (554444455).

The spelling of 250420403 in words is "two hundred fifty million, four hundred twenty thousand, four hundred three".