2505123245 has 8 divisors (see below), whose sum is σ = 3007261080. Its totient is φ = 2003356480.

The previous prime is 2505123217. The next prime is 2505123277. The reversal of 2505123245 is 5423215052.

It can be written as a sum of positive squares in 4 ways, for example, as 55071241 + 2450052004 = 7421^2 + 49498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2505123245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77690 + ... + 105099.

It is an arithmetic number, because the mean of its divisors is an integer number (375907635).

Almost surely, 2^2505123245 is an apocalyptic number.

It is an amenable number.

2505123245 is a deficient number, since it is larger than the sum of its proper divisors (502137835).

2505123245 is a wasteful number, since it uses less digits than its factorization.

2505123245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185535.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2505123245 is about 50051.2062292209. The cubic root of 2505123245 is about 1358.1352841425.

Adding to 2505123245 its reverse (5423215052), we get a palindrome (7928338297).

The spelling of 2505123245 in words is "two billion, five hundred five million, one hundred twenty-three thousand, two hundred forty-five".