32525021 has 2 divisors, whose sum is σ = 32525022. Its totient is φ = 32525020.

The previous prime is 32524993. The next prime is 32525023. The reversal of 32525021 is 12052523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30525625 + 1999396 = 5525^2 + 1414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32525021 is a prime.

Together with 32525023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 32524984 and 32525002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32525023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16262510 + 16262511.

It is an arithmetic number, because the mean of its divisors is an integer number (16262511).

Almost surely, 2^32525021 is an apocalyptic number.

It is an amenable number.

32525021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32525021 is an equidigital number, since it uses as much as digits as its factorization.

32525021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 32525021 is about 5703.0711901571. The cubic root of 32525021 is about 319.2070896483.

Adding to 32525021 its reverse (12052523), we get a palindrome (44577544).

The spelling of 32525021 in words is "thirty-two million, five hundred twenty-five thousand, twenty-one".