25525505253 has 16 divisors (see below), whose sum is σ = 36054982656. Its totient is φ = 16007569920.

The previous prime is 25525505233. The next prime is 25525505311. The reversal of 25525505253 is 35250552552.

It is not a de Polignac number, because 25525505253 - 2²¹ = 25523408101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25525505233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33253 + ... + 228378.

It is an arithmetic number, because the mean of its divisors is an integer number (2253436416).

Almost surely, 2^25525505253 is an apocalyptic number.

It is an amenable number.

25525505253 is a deficient number, since it is larger than the sum of its proper divisors (10529477403).

25525505253 is a wasteful number, since it uses less digits than its factorization.

25525505253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263564.

The product of its (nonzero) digits is 375000, while the sum is 39.

The spelling of 25525505253 in words is "twenty-five billion, five hundred twenty-five million, five hundred five thousand, two hundred fifty-three".