55455423323 has 4 divisors (see below), whose sum is σ = 55795640808. Its totient is φ = 55115205840.

The previous prime is 55455423307. The next prime is 55455423451. The reversal of 55455423323 is 32332455455.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32332455455 = 5 ⋅6466491091.

It is a cyclic number.

It is not a de Polignac number, because 55455423323 - 2⁴ = 55455423307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55455423523) 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, 170108498 + ... + 170108823.

It is an arithmetic number, because the mean of its divisors is an integer number (13948910202).

Almost surely, 2^55455423323 is an apocalyptic number.

55455423323 is a deficient number, since it is larger than the sum of its proper divisors (340217485).

55455423323 is a wasteful number, since it uses less digits than its factorization.

55455423323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340217484.

The product of its digits is 1080000, while the sum is 41.

Adding to 55455423323 its reverse (32332455455), we get a palindrome (87787878778).

The spelling of 55455423323 in words is "fifty-five billion, four hundred fifty-five million, four hundred twenty-three thousand, three hundred twenty-three".