53440436441023 has 8 divisors (see below), whose sum is σ = 53595086030208. Its totient is φ = 53286001496064.

The previous prime is 53440436441017. The next prime is 53440436441027. The reversal of 53440436441023 is 32014463404435.

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 53440436441023 - 2²¹ = 53440434343871 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 (53440436441027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53162386 + ... + 54158287.

It is an arithmetic number, because the mean of its divisors is an integer number (6699385753776).

Almost surely, 2^{53440436441023} is an apocalyptic number.

53440436441023 is a deficient number, since it is larger than the sum of its proper divisors (154649589185).

53440436441023 is a wasteful number, since it uses less digits than its factorization.

53440436441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107322113.

The product of its (nonzero) digits is 1658880, while the sum is 43.

Adding to 53440436441023 its reverse (32014463404435), we get a palindrome (85454899845458).

The spelling of 53440436441023 in words is "fifty-three trillion, four hundred forty billion, four hundred thirty-six million, four hundred forty-one thousand, twenty-three".