55321038756018 has 64 divisors (see below), whose sum is σ = 148762457176320. Its totient is φ = 14876245714176.

The previous prime is 55321038756017. The next prime is 55321038756019. The reversal of 55321038756018 is 81065783012355.

55321038756018 is a `hidden beast` number, since 5 + 5 + 3 + 21 + 0 + 3 + 8 + 7 + 5 + 601 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (55321038756017) and next prime (55321038756019).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (55321038756017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4304462821 + ... + 4304475672.

It is an arithmetic number, because the mean of its divisors is an integer number (2324413393380).

Almost surely, 2^{55321038756018} is an apocalyptic number.

55321038756018 is an abundant number, since it is smaller than the sum of its proper divisors (93441418420302).

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

55321038756018 is a wasteful number, since it uses less digits than its factorization.

55321038756018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608938528 (or 8608938522 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 55321038756018 in words is "fifty-five trillion, three hundred twenty-one billion, thirty-eight million, seven hundred fifty-six thousand, eighteen".