55215210404142 has 16 divisors (see below), whose sum is σ = 122700467564880. Its totient is φ = 18405070134696.

The previous prime is 55215210404129. The next prime is 55215210404173. The reversal of 55215210404142 is 24140401251255.

55215210404142 is a `hidden beast` number, since 5 + 5 + 21 + 5 + 210 + 4 + 0 + 414 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55215210404097 and 55215210404106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511251948133 + ... + 511251948240.

It is an arithmetic number, because the mean of its divisors is an integer number (7668779222805).

Almost surely, 2^{55215210404142} is an apocalyptic number.

55215210404142 is an abundant number, since it is smaller than the sum of its proper divisors (67485257160738).

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

55215210404142 is a wasteful number, since it uses less digits than its factorization.

55215210404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022503896384 (or 1022503896378 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 55215210404142 its reverse (24140401251255), we get a palindrome (79355611655397).

The spelling of 55215210404142 in words is "fifty-five trillion, two hundred fifteen billion, two hundred ten million, four hundred four thousand, one hundred forty-two".