55212732312 has 16 divisors (see below), whose sum is σ = 138031830840. Its totient is φ = 18404244096.

The previous prime is 55212732241. The next prime is 55212732313. The reversal of 55212732312 is 21323721255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55212732313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150265233 + ... + 1150265280.

Almost surely, 2^55212732312 is an apocalyptic number.

It is an amenable number.

55212732312 is an abundant number, since it is smaller than the sum of its proper divisors (82819098528).

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

55212732312 is a wasteful number, since it uses less digits than its factorization.

55212732312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300530522 (or 2300530518 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The spelling of 55212732312 in words is "fifty-five billion, two hundred twelve million, seven hundred thirty-two thousand, three hundred twelve".