2554123105 has 4 divisors (see below), whose sum is σ = 3064947732. Its totient is φ = 2043298480.

The previous prime is 2554123087. The next prime is 2554123109. The reversal of 2554123105 is 5013214552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1965769569 + 588353536 = 44337^2 + 24256^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2554123105 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2554123109) 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, 255412306 + ... + 255412315.

It is an arithmetic number, because the mean of its divisors is an integer number (766236933).

Almost surely, 2^2554123105 is an apocalyptic number.

It is an amenable number.

2554123105 is a deficient number, since it is larger than the sum of its proper divisors (510824627).

2554123105 is an equidigital number, since it uses as much as digits as its factorization.

2554123105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510824626.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2554123105 is about 50538.3330255362. Note that the first 3 decimals coincide. The cubic root of 2554123105 is about 1366.9331480826.

Adding to 2554123105 its reverse (5013214552), we get a palindrome (7567337657).

The spelling of 2554123105 in words is "two billion, five hundred fifty-four million, one hundred twenty-three thousand, one hundred five".