52540213444 has 12 divisors (see below), whose sum is σ = 91950637968. Its totient is φ = 26268602600.

The previous prime is 52540213441. The next prime is 52540213469. The reversal of 52540213444 is 44431204525.

It is a super-2 number, since 2×52540213444² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52540213441) 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, 295522 + ... + 438649.

It is an arithmetic number, because the mean of its divisors is an integer number (7662553164).

Almost surely, 2^52540213444 is an apocalyptic number.

It is an amenable number.

52540213444 is a deficient number, since it is larger than the sum of its proper divisors (39410424524).

52540213444 is a wasteful number, since it uses less digits than its factorization.

52540213444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752066 (or 752064 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 52540213444 its reverse (44431204525), we get a palindrome (96971417969).

The spelling of 52540213444 in words is "fifty-two billion, five hundred forty million, two hundred thirteen thousand, four hundred forty-four".