53042545315321 has 4 divisors (see below), whose sum is σ = 54171110109312. Its totient is φ = 51913980521332.

The previous prime is 53042545315283. The next prime is 53042545315363. The reversal of 53042545315321 is 12351354524035.

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 not a de Polignac number, because 53042545315321 - 2¹⁵ = 53042545282553 is a prime.

It is a super-2 number, since 2×53042545315321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53042545015321) 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, 564282396925 + ... + 564282397018.

It is an arithmetic number, because the mean of its divisors is an integer number (13542777527328).

Almost surely, 2^{53042545315321} is an apocalyptic number.

It is an amenable number.

53042545315321 is a deficient number, since it is larger than the sum of its proper divisors (1128564793991).

53042545315321 is a wasteful number, since it uses less digits than its factorization.

53042545315321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128564793990.

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 53042545315321 its reverse (12351354524035), we get a palindrome (65393899839356).

The spelling of 53042545315321 in words is "fifty-three trillion, forty-two billion, five hundred forty-five million, three hundred fifteen thousand, three hundred twenty-one".