531532401 has 8 divisors (see below), whose sum is σ = 709671840. Its totient is φ = 353873952.

The previous prime is 531532367. The next prime is 531532403. The reversal of 531532401 is 104235135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531532401 - 2⁷ = 531532273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531532403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117660 + ... + 122093.

It is an arithmetic number, because the mean of its divisors is an integer number (88708980).

Almost surely, 2^531532401 is an apocalyptic number.

It is an amenable number.

531532401 is a deficient number, since it is larger than the sum of its proper divisors (178139439).

531532401 is a wasteful number, since it uses less digits than its factorization.

531532401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240495.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 531532401 is about 23054.9864671398. The cubic root of 531532401 is about 810.0464338569.

Adding to 531532401 its reverse (104235135), we get a palindrome (635767536).

The spelling of 531532401 in words is "five hundred thirty-one million, five hundred thirty-two thousand, four hundred one".