250220501 has 8 divisors (see below), whose sum is σ = 265396824. Its totient is φ = 235095040.

The previous prime is 250220489. The next prime is 250220507. The reversal of 250220501 is 105022052.

It can be written as a sum of positive squares in 4 ways, for example, as 36300625 + 213919876 = 6025^2 + 14626^2 .

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

It is not a de Polignac number, because 250220501 - 2¹⁰ = 250219477 is a prime.

It is a super-2 number, since 2×250220501² = 125220598241382002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 250220501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250220507) 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, 2330 + ... + 22491.

It is an arithmetic number, because the mean of its divisors is an integer number (33174603).

Almost surely, 2^250220501 is an apocalyptic number.

It is an amenable number.

250220501 is a deficient number, since it is larger than the sum of its proper divisors (15176323).

250220501 is a wasteful number, since it uses less digits than its factorization.

250220501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25431.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 250220501 is about 15818.3596178618. The cubic root of 250220501 is about 630.1456797566.

Adding to 250220501 its reverse (105022052), we get a palindrome (355242553).

The spelling of 250220501 in words is "two hundred fifty million, two hundred twenty thousand, five hundred one".