55000923 has 4 divisors (see below), whose sum is σ = 73334568. Its totient is φ = 36667280.

The previous prime is 55000871. The next prime is 55000937. The reversal of 55000923 is 32900055.

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 55000923 - 2⁸ = 55000667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55000893 and 55000902.

It is not an unprimeable number, because it can be changed into a prime (55000523) 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 3 ways as a sum of consecutive naturals, for example, 9166818 + ... + 9166823.

It is an arithmetic number, because the mean of its divisors is an integer number (18333642).

Almost surely, 2^55000923 is an apocalyptic number.

55000923 is a deficient number, since it is larger than the sum of its proper divisors (18333645).

55000923 is a wasteful number, since it uses less digits than its factorization.

55000923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333644.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 55000923 is about 7416.2607154819. The cubic root of 55000923 is about 380.2973734128.

Adding to 55000923 its reverse (32900055), we get a palindrome (87900978).

The spelling of 55000923 in words is "fifty-five million, nine hundred twenty-three", and thus it is an aban number.