53024020421 has 8 divisors (see below), whose sum is σ = 54460362264. Its totient is φ = 51587850240.

The previous prime is 53024020417. The next prime is 53024020547. The reversal of 53024020421 is 12402042035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2205335521 + 50818684900 = 46961^2 + 225430^2 .

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 53024020421 - 2² = 53024020417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53024025421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 809141 + ... + 872213.

It is an arithmetic number, because the mean of its divisors is an integer number (6807545283).

Almost surely, 2^53024020421 is an apocalyptic number.

It is an amenable number.

53024020421 is a deficient number, since it is larger than the sum of its proper divisors (1436341843).

53024020421 is a wasteful number, since it uses less digits than its factorization.

53024020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85831.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 53024020421 its reverse (12402042035), we get a palindrome (65426062456).

The spelling of 53024020421 in words is "fifty-three billion, twenty-four million, twenty thousand, four hundred twenty-one".