55511212541012 has 12 divisors (see below), whose sum is σ = 101368301162016. Its totient is φ = 26548840780440.

The previous prime is 55511212540937. The next prime is 55511212541017. The reversal of 55511212541012 is 21014521211555.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511212541017) 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, 301691372414 + ... + 301691372597.

It is an arithmetic number, because the mean of its divisors is an integer number (8447358430168).

Almost surely, 2^{55511212541012} is an apocalyptic number.

It is an amenable number.

55511212541012 is a deficient number, since it is larger than the sum of its proper divisors (45857088621004).

55511212541012 is a wasteful number, since it uses less digits than its factorization.

55511212541012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603382745038 (or 603382745036 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 35.

Adding to 55511212541012 its reverse (21014521211555), we get a palindrome (76525733752567).

The spelling of 55511212541012 in words is "fifty-five trillion, five hundred eleven billion, two hundred twelve million, five hundred forty-one thousand, twelve".