55327640320554 has 96 divisors (see below), whose sum is σ = 133321152415680. Its totient is φ = 15244339767552.

The previous prime is 55327640320549. The next prime is 55327640320559. The reversal of 55327640320554 is 45502304672355.

55327640320554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55327640320549) and next prime (55327640320559).

It is a super-2 number, since 2×55327640320554² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55327640320497 and 55327640320506.

It is not an unprimeable number, because it can be changed into a prime (55327640320559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3127614 + ... + 10974390.

It is an arithmetic number, because the mean of its divisors is an integer number (1388762004330).

Almost surely, 2^{55327640320554} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55327640320554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66660576207840).

55327640320554 is an abundant number, since it is smaller than the sum of its proper divisors (77993512095126).

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

55327640320554 is a wasteful number, since it uses less digits than its factorization.

55327640320554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7847652 (or 7847645 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 51.

The spelling of 55327640320554 in words is "fifty-five trillion, three hundred twenty-seven billion, six hundred forty million, three hundred twenty thousand, five hundred fifty-four".