21032527 has 2 divisors, whose sum is σ = 21032528. Its totient is φ = 21032526.

The previous prime is 21032521. The next prime is 21032533. The reversal of 21032527 is 72523012.

It is a balanced prime because it is at equal distance from previous prime (21032521) and next prime (21032533).

It is a cyclic number.

It is not a de Polignac number, because 21032527 - 2⁷ = 21032399 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 21032498 and 21032507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032521) 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, 10516263 + 10516264.

It is an arithmetic number, because the mean of its divisors is an integer number (10516264).

Almost surely, 2^21032527 is an apocalyptic number.

21032527 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032527 is an equidigital number, since it uses as much as digits as its factorization.

21032527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 21032527 is about 4586.1233084164. The cubic root of 21032527 is about 276.0347878506.

Adding to 21032527 its reverse (72523012), we get a palindrome (93555539).

The spelling of 21032527 in words is "twenty-one million, thirty-two thousand, five hundred twenty-seven".