220432501 has 2 divisors, whose sum is σ = 220432502. Its totient is φ = 220432500.

The previous prime is 220432481. The next prime is 220432517. The reversal of 220432501 is 105234022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181980100 + 38452401 = 13490^2 + 6201^2 .

It is a cyclic number.

It is not a de Polignac number, because 220432501 - 2¹⁵ = 220399733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220432571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110216250 + 110216251.

It is an arithmetic number, because the mean of its divisors is an integer number (110216251).

Almost surely, 2^220432501 is an apocalyptic number.

It is an amenable number.

220432501 is a deficient number, since it is larger than the sum of its proper divisors (1).

220432501 is an equidigital number, since it uses as much as digits as its factorization.

220432501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 220432501 is about 14846.9694214004. The cubic root of 220432501 is about 604.0764096789.

Adding to 220432501 its reverse (105234022), we get a palindrome (325666523).

The spelling of 220432501 in words is "two hundred twenty million, four hundred thirty-two thousand, five hundred one".