55322313012 has 24 divisors (see below), whose sum is σ = 143428219200. Its totient is φ = 18440770968.

The previous prime is 55322313001. The next prime is 55322313029. The reversal of 55322313012 is 21031322355.

It is a happy number.

55322313012 is a `hidden beast` number, since 5 + 5 + 322 + 31 + 301 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256121712 + ... + 256121927.

It is an arithmetic number, because the mean of its divisors is an integer number (5976175800).

Almost surely, 2^55322313012 is an apocalyptic number.

It is an amenable number.

55322313012 is an abundant number, since it is smaller than the sum of its proper divisors (88105906188).

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

55322313012 is a wasteful number, since it uses less digits than its factorization.

55322313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512243652 (or 512243644 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 55322313012 its reverse (21031322355), we get a palindrome (76353635367).

The spelling of 55322313012 in words is "fifty-five billion, three hundred twenty-two million, three hundred thirteen thousand, twelve".