2515450252145 has 4 divisors (see below), whose sum is σ = 3018540302580. Its totient is φ = 2012360201712.

The previous prime is 2515450252087. The next prime is 2515450252153. The reversal of 2515450252145 is 5412520545152.

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 600924187249 + 1914526064896 = 775193^2 + 1383664^2 .

It is a cyclic number.

It is not a de Polignac number, because 2515450252145 - 2¹⁶ = 2515450186609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251545025210 + ... + 251545025219.

It is an arithmetic number, because the mean of its divisors is an integer number (754635075645).

Almost surely, 2^{2515450252145} is an apocalyptic number.

It is an amenable number.

2515450252145 is a deficient number, since it is larger than the sum of its proper divisors (503090050435).

2515450252145 is an equidigital number, since it uses as much as digits as its factorization.

2515450252145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503090050434.

The product of its (nonzero) digits is 400000, while the sum is 41.

Adding to 2515450252145 its reverse (5412520545152), we get a palindrome (7927970797297).

The spelling of 2515450252145 in words is "two trillion, five hundred fifteen billion, four hundred fifty million, two hundred fifty-two thousand, one hundred forty-five".