55200312213 has 32 divisors (see below), whose sum is σ = 79790147712. Its totient is φ = 33809664000.

The previous prime is 55200312197. The next prime is 55200312217. The reversal of 55200312213 is 31221300255.

It is a happy number.

It is not a de Polignac number, because 55200312213 - 2⁴ = 55200312197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55200312217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4162273 + ... + 4175513.

It is an arithmetic number, because the mean of its divisors is an integer number (2493442116).

Almost surely, 2^55200312213 is an apocalyptic number.

It is an amenable number.

55200312213 is a deficient number, since it is larger than the sum of its proper divisors (24589835499).

55200312213 is a wasteful number, since it uses less digits than its factorization.

55200312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15205.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 55200312213 its reverse (31221300255), we get a palindrome (86421612468).

The spelling of 55200312213 in words is "fifty-five billion, two hundred million, three hundred twelve thousand, two hundred thirteen".