55634203213 has 8 divisors (see below), whose sum is σ = 58911511032. Its totient is φ = 52357418496.

The previous prime is 55634203211. The next prime is 55634203301. The reversal of 55634203213 is 31230243655.

It can be written as a sum of positive squares in 4 ways, for example, as 7971454089 + 47662749124 = 89283^2 + 218318^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55634203213 - 2¹ = 55634203211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55634203211) by changing a digit.

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, 99831 + ... + 348187.

It is an arithmetic number, because the mean of its divisors is an integer number (7363938879).

Almost surely, 2^55634203213 is an apocalyptic number.

It is an amenable number.

55634203213 is a deficient number, since it is larger than the sum of its proper divisors (3277307819).

55634203213 is a wasteful number, since it uses less digits than its factorization.

55634203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261551.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 55634203213 its reverse (31230243655), we get a palindrome (86864446868).

The spelling of 55634203213 in words is "fifty-five billion, six hundred thirty-four million, two hundred three thousand, two hundred thirteen".