25641606350 has 24 divisors (see below), whose sum is σ = 49767015600. Its totient is φ = 9810701120.

The previous prime is 25641606317. The next prime is 25641606359. The reversal of 25641606350 is 5360614652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25641606359) 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, 11147375 + ... + 11149674.

It is an arithmetic number, because the mean of its divisors is an integer number (2073625650).

Almost surely, 2^25641606350 is an apocalyptic number.

25641606350 is a deficient number, since it is larger than the sum of its proper divisors (24125409250).

25641606350 is a wasteful number, since it uses less digits than its factorization.

25641606350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22297084 (or 22297079 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 25641606350 in words is "twenty-five billion, six hundred forty-one million, six hundred six thousand, three hundred fifty".