5500399123 has 2 divisors, whose sum is σ = 5500399124. Its totient is φ = 5500399122.

The previous prime is 5500399117. The next prime is 5500399133. The reversal of 5500399123 is 3219930055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5500399123 is a prime.

It is not a weakly prime, because it can be changed into another prime (5500399133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750199561 + 2750199562.

It is an arithmetic number, because the mean of its divisors is an integer number (2750199562).

Almost surely, 2^5500399123 is an apocalyptic number.

5500399123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5500399123 is an equidigital number, since it uses as much as digits as its factorization.

5500399123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 5500399123 is about 74164.6757088575. The cubic root of 5500399123 is about 1765.2168649096.

The spelling of 5500399123 in words is "five billion, five hundred million, three hundred ninety-nine thousand, one hundred twenty-three".