55554403312 has 20 divisors (see below), whose sum is σ = 107640893776. Its totient is φ = 27776108160.

The previous prime is 55554403273. The next prime is 55554403313. The reversal of 55554403312 is 21330445555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55554403313) 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, 488053 + ... + 591019.

Almost surely, 2^55554403312 is an apocalyptic number.

It is an amenable number.

55554403312 is a deficient number, since it is larger than the sum of its proper divisors (52086490464).

55554403312 is a wasteful number, since it uses less digits than its factorization.

55554403312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136696 (or 136690 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

Adding to 55554403312 its reverse (21330445555), we get a palindrome (76884848867).

The spelling of 55554403312 in words is "fifty-five billion, five hundred fifty-four million, four hundred three thousand, three hundred twelve".