53222145644 has 12 divisors (see below), whose sum is σ = 93140615904. Its totient is φ = 26610541104.

The previous prime is 53222145643. The next prime is 53222145719. The reversal of 53222145644 is 44654122235.

53222145644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×53222145644² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53222145598 and 53222145607.

It is not an unprimeable number, because it can be changed into a prime (53222145643) 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, 167954 + ... + 366950.

It is an arithmetic number, because the mean of its divisors is an integer number (7761717992).

Almost surely, 2^53222145644 is an apocalyptic number.

It is an amenable number.

53222145644 is a deficient number, since it is larger than the sum of its proper divisors (39918470260).

53222145644 is a wasteful number, since it uses less digits than its factorization.

53222145644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265864 (or 265862 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

Adding to 53222145644 its reverse (44654122235), we get a palindrome (97876267879).

The spelling of 53222145644 in words is "fifty-three billion, two hundred twenty-two million, one hundred forty-five thousand, six hundred forty-four".