53421453 has 12 divisors (see below), whose sum is σ = 77721280. Its totient is φ = 35357256.

The previous prime is 53421419. The next prime is 53421461. The reversal of 53421453 is 35412435.

It is not a de Polignac number, because 53421453 - 2¹⁴ = 53405069 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 (53421493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20101 + ... + 22602.

Almost surely, 2^53421453 is an apocalyptic number.

It is an amenable number.

53421453 is a deficient number, since it is larger than the sum of its proper divisors (24299827).

53421453 is a wasteful number, since it uses less digits than its factorization.

53421453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42848 (or 42845 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 53421453 is about 7308.9980845530. The cubic root of 53421453 is about 376.6216069348.

Adding to 53421453 its reverse (35412435), we get a palindrome (88833888).

The spelling of 53421453 in words is "fifty-three million, four hundred twenty-one thousand, four hundred fifty-three".