432520513 has 4 divisors (see below), whose sum is σ = 432769840. Its totient is φ = 432271188.

The previous prime is 432520489. The next prime is 432520549. The reversal of 432520513 is 315025234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315025234 = 2 ⋅157512617.

It is a cyclic number.

It is not a de Polignac number, because 432520513 - 2²¹ = 430423361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (432520013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122043 + ... + 125536.

It is an arithmetic number, because the mean of its divisors is an integer number (108192460).

Almost surely, 2^432520513 is an apocalyptic number.

It is an amenable number.

432520513 is a deficient number, since it is larger than the sum of its proper divisors (249327).

432520513 is a wasteful number, since it uses less digits than its factorization.

432520513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249326.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 432520513 is about 20797.1275180011. The cubic root of 432520513 is about 756.2561216361.

Adding to 432520513 its reverse (315025234), we get a palindrome (747545747).

The spelling of 432520513 in words is "four hundred thirty-two million, five hundred twenty thousand, five hundred thirteen".