55615584573138 has 8 divisors (see below), whose sum is σ = 111231169146288. Its totient is φ = 18538528191044.

The previous prime is 55615584573137. The next prime is 55615584573139. The reversal of 55615584573138 is 83137548551655.

It is an interprime number because it is at equal distance from previous prime (55615584573137) and next prime (55615584573139).

It is a sphenic number, since it is the product of 3 distinct primes.

55615584573138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55615584573137) 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, 4634632047756 + ... + 4634632047767.

It is an arithmetic number, because the mean of its divisors is an integer number (13903896143286).

Almost surely, 2^{55615584573138} is an apocalyptic number.

55615584573138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55615584573138 is a wasteful number, since it uses less digits than its factorization.

55615584573138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269264095528.

The product of its digits is 302400000, while the sum is 66.

The spelling of 55615584573138 in words is "fifty-five trillion, six hundred fifteen billion, five hundred eighty-four million, five hundred seventy-three thousand, one hundred thirty-eight".