55748321812 has 6 divisors (see below), whose sum is σ = 97559563178. Its totient is φ = 27874160904.

The previous prime is 55748321803. The next prime is 55748321851. The reversal of 55748321812 is 21812384755.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45862792336 + 9885529476 = 214156^2 + 99426^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6968540223 + ... + 6968540230.

Almost surely, 2^55748321812 is an apocalyptic number.

It is an amenable number.

55748321812 is a deficient number, since it is larger than the sum of its proper divisors (41811241366).

55748321812 is a wasteful number, since it uses less digits than its factorization.

55748321812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13937080457 (or 13937080455 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The spelling of 55748321812 in words is "fifty-five billion, seven hundred forty-eight million, three hundred twenty-one thousand, eight hundred twelve".