55327640320422 has 24 divisors (see below), whose sum is σ = 119893173822864. Its totient is φ = 18439989881904.

The previous prime is 55327640320391. The next prime is 55327640320423. The reversal of 55327640320422 is 22402304672355.

55327640320422 is a `hidden beast` number, since 5 + 5 + 32 + 7 + 6 + 403 + 204 + 2 + 2 = 666.

It is a super-2 number, since 2×55327640320422² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55327640320423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212940858 + ... + 213200525.

It is an arithmetic number, because the mean of its divisors is an integer number (4995548909286).

Almost surely, 2^{55327640320422} is an apocalyptic number.

55327640320422 is an abundant number, since it is smaller than the sum of its proper divisors (64565533502442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55327640320422 is a wasteful number, since it uses less digits than its factorization.

55327640320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426148604 (or 426148601 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 45.

Adding to 55327640320422 its reverse (22402304672355), we get a palindrome (77729944992777).

The spelling of 55327640320422 in words is "fifty-five trillion, three hundred twenty-seven billion, six hundred forty million, three hundred twenty thousand, four hundred twenty-two".