53213444544311 has 4 divisors (see below), whose sum is σ = 53213468051400. Its totient is φ = 53213421037224.

The previous prime is 53213444544287. The next prime is 53213444544353. The reversal of 53213444544311 is 11344544431235.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53213444544311 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 (53213444549311) 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, 7947041 + ... + 13022378.

It is an arithmetic number, because the mean of its divisors is an integer number (13303367012850).

Almost surely, 2^{53213444544311} is an apocalyptic number.

53213444544311 is a deficient number, since it is larger than the sum of its proper divisors (23507089).

53213444544311 is a wasteful number, since it uses less digits than its factorization.

53213444544311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23507088.

The product of its digits is 1382400, while the sum is 44.

Adding to 53213444544311 its reverse (11344544431235), we get a palindrome (64557988975546).

The spelling of 53213444544311 in words is "fifty-three trillion, two hundred thirteen billion, four hundred forty-four million, five hundred forty-four thousand, three hundred eleven".