25541250656 has 24 divisors (see below), whose sum is σ = 50332247784. Its totient is φ = 12758457600.

The previous prime is 25541250643. The next prime is 25541250667. The reversal of 25541250656 is 65605214552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346085 + ... + 413348.

It is an arithmetic number, because the mean of its divisors is an integer number (2097176991).

Almost surely, 2^25541250656 is an apocalyptic number.

It is an amenable number.

25541250656 is a deficient number, since it is larger than the sum of its proper divisors (24790997128).

25541250656 is a wasteful number, since it uses less digits than its factorization.

25541250656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760494 (or 760486 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 25541250656 in words is "twenty-five billion, five hundred forty-one million, two hundred fifty thousand, six hundred fifty-six".