55013212312 has 32 divisors (see below), whose sum is σ = 109354965120. Its totient is φ = 25899851520.

The previous prime is 55013212291. The next prime is 55013212339. The reversal of 55013212312 is 21321231055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2988493 + ... + 3006844.

It is an arithmetic number, because the mean of its divisors is an integer number (3417342660).

Almost surely, 2^55013212312 is an apocalyptic number.

It is an amenable number.

55013212312 is a deficient number, since it is larger than the sum of its proper divisors (54341752808).

55013212312 is a wasteful number, since it uses less digits than its factorization.

55013212312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5995411 (or 5995407 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 55013212312 its reverse (21321231055), we get a palindrome (76334443367).

The spelling of 55013212312 in words is "fifty-five billion, thirteen million, two hundred twelve thousand, three hundred twelve".