55046452213212 has 24 divisors (see below), whose sum is σ = 128443679327376. Its totient is φ = 18348537762048.

The previous prime is 55046452213127. The next prime is 55046452213217. The reversal of 55046452213212 is 21231225464055.

It is a super-2 number, since 2×55046452213212² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55046452213217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34134333 + ... + 35710580.

It is an arithmetic number, because the mean of its divisors is an integer number (5351819971974).

Almost surely, 2^{55046452213212} is an apocalyptic number.

It is an amenable number.

55046452213212 is an abundant number, since it is smaller than the sum of its proper divisors (73397227114164).

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

55046452213212 is a wasteful number, since it uses less digits than its factorization.

55046452213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69910597 (or 69910595 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 55046452213212 its reverse (21231225464055), we get a palindrome (76277677677267).

The spelling of 55046452213212 in words is "fifty-five trillion, forty-six billion, four hundred fifty-two million, two hundred thirteen thousand, two hundred twelve".