25250550505253 has 12 divisors (see below), whose sum is σ = 26835009278532. Its totient is φ = 23754804610560.

The previous prime is 25250550505211. The next prime is 25250550505273. The reversal of 25250550505253 is 35250505505252.

It can be written as a sum of positive squares in 6 ways, for example, as 2534059648129 + 22716490857124 = 1591873^2 + 4766182^2 .

It is not a de Polignac number, because 25250550505253 - 2⁶ = 25250550505189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250550505273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18492950 + ... + 19811367.

It is an arithmetic number, because the mean of its divisors is an integer number (2236250773211).

Almost surely, 2^{25250550505253} is an apocalyptic number.

It is an amenable number.

25250550505253 is a deficient number, since it is larger than the sum of its proper divisors (1584458773279).

25250550505253 is a wasteful number, since it uses less digits than its factorization.

25250550505253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38306632 (or 38306615 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 44.

It can be divided in two parts, 252 and 50550505253, that added together give a palindrome (50550505505).

The spelling of 25250550505253 in words is "twenty-five trillion, two hundred fifty billion, five hundred fifty million, five hundred five thousand, two hundred fifty-three".