421532053513 has 8 divisors (see below), whose sum is σ = 430809511496. Its totient is φ = 412330953600.

The previous prime is 421532053493. The next prime is 421532053519. The reversal of 421532053513 is 315350235124.

It can be written as a sum of positive squares in 4 ways, for example, as 22364604304 + 399167449209 = 149548^2 + 631797^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 421532053513 - 2⁹ = 421532053001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421532053519) 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 in 7 ways as a sum of consecutive naturals, for example, 19078356 + ... + 19100437.

It is an arithmetic number, because the mean of its divisors is an integer number (53851188937).

Almost surely, 2^421532053513 is an apocalyptic number.

It is an amenable number.

421532053513 is a deficient number, since it is larger than the sum of its proper divisors (9277457983).

421532053513 is a wasteful number, since it uses less digits than its factorization.

421532053513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38179035.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 421532053513 its reverse (315350235124), we get a palindrome (736882288637).

The spelling of 421532053513 in words is "four hundred twenty-one billion, five hundred thirty-two million, fifty-three thousand, five hundred thirteen".