53442043020253 has 4 divisors (see below), whose sum is σ = 53478672249280. Its totient is φ = 53405413791228.

The previous prime is 53442043020229. The next prime is 53442043020263. The reversal of 53442043020253 is 35202034024435.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53442043020253 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 (53442043020263) 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, 18314612325 + ... + 18314615242.

It is an arithmetic number, because the mean of its divisors is an integer number (13369668062320).

Almost surely, 2^{53442043020253} is an apocalyptic number.

It is an amenable number.

53442043020253 is a deficient number, since it is larger than the sum of its proper divisors (36629229027).

53442043020253 is a wasteful number, since it uses less digits than its factorization.

53442043020253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36629229026.

The product of its (nonzero) digits is 345600, while the sum is 37.

Adding to 53442043020253 its reverse (35202034024435), we get a palindrome (88644077044688).

The spelling of 53442043020253 in words is "fifty-three trillion, four hundred forty-two billion, forty-three million, twenty thousand, two hundred fifty-three".