2805525250049 has 4 divisors (see below), whose sum is σ = 2806685999364. Its totient is φ = 2804364500736.

The previous prime is 2805525250019. The next prime is 2805525250057. The reversal of 2805525250049 is 9400525255082.

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 2436274574449 + 369250675600 = 1560857^2 + 607660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2805525250049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2805525249985 and 2805525250012.

It is not an unprimeable number, because it can be changed into a prime (2805525250019) 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, 580371032 + ... + 580375865.

It is an arithmetic number, because the mean of its divisors is an integer number (701671499841).

Almost surely, 2^{2805525250049} is an apocalyptic number.

It is an amenable number.

2805525250049 is a deficient number, since it is larger than the sum of its proper divisors (1160749315).

2805525250049 is a wasteful number, since it uses less digits than its factorization.

2805525250049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160749314.

The product of its (nonzero) digits is 1440000, while the sum is 47.

The spelling of 2805525250049 in words is "two trillion, eight hundred five billion, five hundred twenty-five million, two hundred fifty thousand, forty-nine".