55345302231 has 4 divisors (see below), whose sum is σ = 73793736312. Its totient is φ = 36896868152.

The previous prime is 55345302211. The next prime is 55345302239. The reversal of 55345302231 is 13220354355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55345302231 - 2⁶ = 55345302167 is a prime.

It is a super-2 number, since 2×55345302231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55345302192 and 55345302201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55345302239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9224217036 + ... + 9224217041.

It is an arithmetic number, because the mean of its divisors is an integer number (18448434078).

Almost surely, 2^55345302231 is an apocalyptic number.

55345302231 is a deficient number, since it is larger than the sum of its proper divisors (18448434081).

55345302231 is a wasteful number, since it uses less digits than its factorization.

55345302231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18448434080.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 55345302231 its reverse (13220354355), we get a palindrome (68565656586).

The spelling of 55345302231 in words is "fifty-five billion, three hundred forty-five million, three hundred two thousand, two hundred thirty-one".