2565950829 has 12 divisors (see below), whose sum is σ = 3704687136. Its totient is φ = 1579046352.

The previous prime is 2565950819. The next prime is 2565950833. The reversal of 2565950829 is 9280595652.

It is not a de Polignac number, because 2565950829 - 2⁴ = 2565950813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2565950809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2530017 + ... + 2531030.

It is an arithmetic number, because the mean of its divisors is an integer number (308723928).

Almost surely, 2^2565950829 is an apocalyptic number.

It is an amenable number.

2565950829 is a deficient number, since it is larger than the sum of its proper divisors (1138736307).

2565950829 is a wasteful number, since it uses less digits than its factorization.

2565950829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061076 (or 5061063 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 51.

The square root of 2565950829 is about 50655.2152201528. The cubic root of 2565950829 is about 1369.0399135857.

The spelling of 2565950829 in words is "two billion, five hundred sixty-five million, nine hundred fifty thousand, eight hundred twenty-nine".