245592505889 has 4 divisors (see below), whose sum is σ = 247156789524. Its totient is φ = 244028222256.

The previous prime is 245592505877. The next prime is 245592505891. The reversal of 245592505889 is 988505295542.

245592505889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 54203755489 + 191388750400 = 232817^2 + 437480^2 .

It is a cyclic number.

It is not a de Polignac number, because 245592505889 - 2³⁶ = 176873029153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245597505889) by changing a digit.

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, 782141582 + ... + 782141895.

It is an arithmetic number, because the mean of its divisors is an integer number (61789197381).

Almost surely, 2^245592505889 is an apocalyptic number.

It is an amenable number.

245592505889 is a deficient number, since it is larger than the sum of its proper divisors (1564283635).

245592505889 is a wasteful number, since it uses less digits than its factorization.

245592505889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564283634.

The product of its (nonzero) digits is 51840000, while the sum is 62.

The spelling of 245592505889 in words is "two hundred forty-five billion, five hundred ninety-two million, five hundred five thousand, eight hundred eighty-nine".