55005422133 has 4 divisors (see below), whose sum is σ = 73340562848. Its totient is φ = 36670281420.

The previous prime is 55005422089. The next prime is 55005422137. The reversal of 55005422133 is 33122450055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55005422133 - 2²⁸ = 54736986677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55005422133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005422137) 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, 9167570353 + ... + 9167570358.

It is an arithmetic number, because the mean of its divisors is an integer number (18335140712).

Almost surely, 2^55005422133 is an apocalyptic number.

It is an amenable number.

55005422133 is a deficient number, since it is larger than the sum of its proper divisors (18335140715).

55005422133 is a wasteful number, since it uses less digits than its factorization.

55005422133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335140714.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 55005422133 its reverse (33122450055), we get a palindrome (88127872188).

The spelling of 55005422133 in words is "fifty-five billion, five million, four hundred twenty-two thousand, one hundred thirty-three".