532415021 has 2 divisors, whose sum is σ = 532415022. Its totient is φ = 532415020.

The previous prime is 532415003. The next prime is 532415029. The reversal of 532415021 is 120514235.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519201796 + 13213225 = 22786^2 + 3635^2 .

It is a cyclic number.

It is not a de Polignac number, because 532415021 - 2⁶ = 532414957 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (532415029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266207510 + 266207511.

It is an arithmetic number, because the mean of its divisors is an integer number (266207511).

Almost surely, 2^532415021 is an apocalyptic number.

It is an amenable number.

532415021 is a deficient number, since it is larger than the sum of its proper divisors (1).

532415021 is an equidigital number, since it uses as much as digits as its factorization.

532415021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 532415021 is about 23074.1201565737. The cubic root of 532415021 is about 810.4945519208.

Adding to 532415021 its reverse (120514235), we get a palindrome (652929256).

The spelling of 532415021 in words is "five hundred thirty-two million, four hundred fifteen thousand, twenty-one".