55512444451252 has 12 divisors (see below), whose sum is σ = 97147335640320. Its totient is φ = 27756062839736.

The previous prime is 55512444451241. The next prime is 55512444451259. The reversal of 55512444451252 is 25215444421555.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55512444451196 and 55512444451205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55512444451259) 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, 39061102 + ... + 40457317.

It is an arithmetic number, because the mean of its divisors is an integer number (8095611303360).

Almost surely, 2^{55512444451252} is an apocalyptic number.

It is an amenable number.

55512444451252 is a deficient number, since it is larger than the sum of its proper divisors (41634891189068).

55512444451252 is a wasteful number, since it uses less digits than its factorization.

55512444451252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79692950 (or 79692948 counting only the distinct ones).

The product of its digits is 6400000, while the sum is 49.

The spelling of 55512444451252 in words is "fifty-five trillion, five hundred twelve billion, four hundred forty-four million, four hundred fifty-one thousand, two hundred fifty-two".