2505264800873 has 4 divisors (see below), whose sum is σ = 2505297976020. Its totient is φ = 2505231625728.

The previous prime is 2505264800837. The next prime is 2505264800897. The reversal of 2505264800873 is 3780084625052.

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 2354407910464 + 150856890409 = 1534408^2 + 388403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505264800873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505264800173) 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, 16474040 + ... + 16625417.

It is an arithmetic number, because the mean of its divisors is an integer number (626324494005).

Almost surely, 2^{2505264800873} is an apocalyptic number.

It is an amenable number.

2505264800873 is a deficient number, since it is larger than the sum of its proper divisors (33175147).

2505264800873 is an equidigital number, since it uses as much as digits as its factorization.

2505264800873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33175146.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 2505264800873 in words is "two trillion, five hundred five billion, two hundred sixty-four million, eight hundred thousand, eight hundred seventy-three".