25257090236 has 48 divisors (see below), whose sum is σ = 51178202880. Its totient is φ = 10682461440.

The previous prime is 25257090233. The next prime is 25257090323. The reversal of 25257090236 is 63209075252.

It is a junction number, because it is equal to n+sod(n) for n = 25257090193 and 25257090202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25257090233) 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, 2339531 + ... + 2350301.

It is an arithmetic number, because the mean of its divisors is an integer number (1066212560).

Almost surely, 2^25257090236 is an apocalyptic number.

It is an amenable number.

25257090236 is an abundant number, since it is smaller than the sum of its proper divisors (25921112644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25257090236 is a wasteful number, since it uses less digits than its factorization.

25257090236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11874 (or 11872 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 41.

The spelling of 25257090236 in words is "twenty-five billion, two hundred fifty-seven million, ninety thousand, two hundred thirty-six".