55123450113 has 16 divisors (see below), whose sum is σ = 79719425856. Its totient is φ = 33743669760.

The previous prime is 55123450069. The next prime is 55123450121. The reversal of 55123450113 is 31105432155.

It is not a de Polignac number, because 55123450113 - 2⁶ = 55123450049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55123450133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13179031 + ... + 13183212.

It is an arithmetic number, because the mean of its divisors is an integer number (4982464116).

Almost surely, 2^55123450113 is an apocalyptic number.

It is an amenable number.

55123450113 is a deficient number, since it is larger than the sum of its proper divisors (24595975743).

55123450113 is a wasteful number, since it uses less digits than its factorization.

55123450113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26362304.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 55123450113 its reverse (31105432155), we get a palindrome (86228882268).

The spelling of 55123450113 in words is "fifty-five billion, one hundred twenty-three million, four hundred fifty thousand, one hundred thirteen".