2505231123 has 4 divisors (see below), whose sum is σ = 3340308168. Its totient is φ = 1670154080.

The previous prime is 2505231107. The next prime is 2505231133. The reversal of 2505231123 is 3211325052.

It is a happy number.

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 2505231123 - 2⁴ = 2505231107 is a prime.

It is a super-2 number, since 2×2505231123² = 12552365959295682258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2505231093 and 2505231102.

It is not an unprimeable number, because it can be changed into a prime (2505231133) 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, 417538518 + ... + 417538523.

It is an arithmetic number, because the mean of its divisors is an integer number (835077042).

Almost surely, 2^2505231123 is an apocalyptic number.

2505231123 is a deficient number, since it is larger than the sum of its proper divisors (835077045).

2505231123 is an equidigital number, since it uses as much as digits as its factorization.

2505231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835077044.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2505231123 is about 50052.2838939443. The cubic root of 2505231123 is about 1358.1547789671.

Adding to 2505231123 its reverse (3211325052), we get a palindrome (5716556175).

The spelling of 2505231123 in words is "two billion, five hundred five million, two hundred thirty-one thousand, one hundred twenty-three".