16432501 has 2 divisors, whose sum is σ = 16432502. Its totient is φ = 16432500.

The previous prime is 16432463. The next prime is 16432529. The reversal of 16432501 is 10523461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895601 + 4536900 = 3449^2 + 2130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432501 is a prime.

It is equal to p_1057108 and since 16432501 and 1057108 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16432571) 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 as a sum of consecutive naturals, namely, 8216250 + 8216251.

It is an arithmetic number, because the mean of its divisors is an integer number (8216251).

Almost surely, 2^16432501 is an apocalyptic number.

It is an amenable number.

16432501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432501 is an equidigital number, since it uses as much as digits as its factorization.

16432501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16432501 is about 4053.7021350859. The cubic root of 16432501 is about 254.2345416622.

Adding to 16432501 its reverse (10523461), we get a palindrome (26955962).

The spelling of 16432501 in words is "sixteen million, four hundred thirty-two thousand, five hundred one".