55438222283456 has 28 divisors (see below), whose sum is σ = 110018664896952. Its totient is φ = 27716983884288.

The previous prime is 55438222283453. The next prime is 55438222283551. The reversal of 55438222283456 is 65438222283455.

It is a super-2 number, since 2×55438222283456² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55438222283395 and 55438222283404.

It is not an unprimeable number, because it can be changed into a prime (55438222283453) 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, 32397770 + ... + 34065993.

It is an arithmetic number, because the mean of its divisors is an integer number (3929238032034).

Almost surely, 2^{55438222283456} is an apocalyptic number.

It is an amenable number.

55438222283456 is a deficient number, since it is larger than the sum of its proper divisors (54580442613496).

55438222283456 is a wasteful number, since it uses less digits than its factorization.

55438222283456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66476808 (or 66476798 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 59.

Subtracting 55438222283456 from its reverse (65438222283455), we obtain a palindrome (9999999999999).

The spelling of 55438222283456 in words is "fifty-five trillion, four hundred thirty-eight billion, two hundred twenty-two million, two hundred eighty-three thousand, four hundred fifty-six".