20032501 has 2 divisors, whose sum is σ = 20032502. Its totient is φ = 20032500.

The previous prime is 20032499. The next prime is 20032513. The reversal of 20032501 is 10523002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18879025 + 1153476 = 4345^2 + 1074^2 .

It is a cyclic number.

It is not a de Polignac number, because 20032501 - 2¹ = 20032499 is a prime.

Together with 20032499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20032601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016250 + 10016251.

It is an arithmetic number, because the mean of its divisors is an integer number (10016251).

Almost surely, 2^20032501 is an apocalyptic number.

It is an amenable number.

20032501 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032501 is an equidigital number, since it uses as much as digits as its factorization.

20032501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 20032501 is about 4475.7682022196. The cubic root of 20032501 is about 271.5887175629.

Adding to 20032501 its reverse (10523002), we get a palindrome (30555503).

The spelling of 20032501 in words is "twenty million, thirty-two thousand, five hundred one".