55103023 has 4 divisors (see below), whose sum is σ = 55151968. Its totient is φ = 55054080.

The previous prime is 55102997. The next prime is 55103033. The reversal of 55103023 is 32030155.

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 55103023 - 2⁹ = 55102511 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 (55103033) 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, 22743 + ... + 25048.

It is an arithmetic number, because the mean of its divisors is an integer number (13787992).

Almost surely, 2^55103023 is an apocalyptic number.

55103023 is a deficient number, since it is larger than the sum of its proper divisors (48945).

55103023 is a wasteful number, since it uses less digits than its factorization.

55103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48944.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 55103023 is about 7423.1410467537. The cubic root of 55103023 is about 380.5325474083.

Adding to 55103023 its reverse (32030155), we get a palindrome (87133178).

The spelling of 55103023 in words is "fifty-five million, one hundred three thousand, twenty-three".