20432527 has 2 divisors, whose sum is σ = 20432528. Its totient is φ = 20432526.

The previous prime is 20432513. The next prime is 20432551. The reversal of 20432527 is 72523402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20432527 - 2²³ = 12043919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216263 + 10216264.

It is an arithmetic number, because the mean of its divisors is an integer number (10216264).

Almost surely, 2^20432527 is an apocalyptic number.

20432527 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432527 is an equidigital number, since it uses as much as digits as its factorization.

20432527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20432527 is about 4520.2352814870. The cubic root of 20432527 is about 273.3845876850.

Adding to 20432527 its reverse (72523402), we get a palindrome (92955929).

The spelling of 20432527 in words is "twenty million, four hundred thirty-two thousand, five hundred twenty-seven".