55111253001312 has 48 divisors (see below), whose sum is σ = 149655557726640. Its totient is φ = 17736954988032.

The previous prime is 55111253001247. The next prime is 55111253001391. The reversal of 55111253001312 is 21310035211155.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 55111253001312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9897851563 + ... + 9897857130.

It is an arithmetic number, because the mean of its divisors is an integer number (3117824119305).

Almost surely, 2^{55111253001312} is an apocalyptic number.

It is an amenable number.

55111253001312 is an abundant number, since it is smaller than the sum of its proper divisors (94544304725328).

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

55111253001312 is a wasteful number, since it uses less digits than its factorization.

55111253001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19795708735 (or 19795708727 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

Adding to 55111253001312 its reverse (21310035211155), we get a palindrome (76421288212467).

The spelling of 55111253001312 in words is "fifty-five trillion, one hundred eleven billion, two hundred fifty-three million, one thousand, three hundred twelve".