55000431244212 has 48 divisors (see below), whose sum is σ = 133605264696960. Its totient is φ = 17588541140352.

The previous prime is 55000431244193. The next prime is 55000431244261. The reversal of 55000431244212 is 21244213400055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503280448 + ... + 503389719.

It is an arithmetic number, because the mean of its divisors is an integer number (2783443014520).

Almost surely, 2^{55000431244212} is an apocalyptic number.

It is an amenable number.

55000431244212 is an abundant number, since it is smaller than the sum of its proper divisors (78604833452748).

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

55000431244212 is a wasteful number, since it uses less digits than its factorization.

55000431244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006670360 (or 1006670358 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 55000431244212 its reverse (21244213400055), we get a palindrome (76244644644267).

The spelling of 55000431244212 in words is "fifty-five trillion, four hundred thirty-one million, two hundred forty-four thousand, two hundred twelve".