25896317650 has 48 divisors (see below), whose sum is σ = 55070868096. Its totient is φ = 8875077120.

The previous prime is 25896317611. The next prime is 25896317663. The reversal of 25896317650 is 5671369852.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 916027 + ... + 943873.

It is an arithmetic number, because the mean of its divisors is an integer number (1147309752).

Almost surely, 2^25896317650 is an apocalyptic number.

25896317650 is an abundant number, since it is smaller than the sum of its proper divisors (29174550446).

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

25896317650 is a wasteful number, since it uses less digits than its factorization.

25896317650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30523 (or 30518 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 25896317650 in words is "twenty-five billion, eight hundred ninety-six million, three hundred seventeen thousand, six hundred fifty".