25406662041 has 32 divisors (see below), whose sum is σ = 39642768000. Its totient is φ = 16037305344.

The previous prime is 25406662007. The next prime is 25406662049. The reversal of 25406662041 is 14026660452.

It is not a de Polignac number, because 25406662041 - 2⁶ = 25406661977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25406661987 and 25406662005.

It is not an unprimeable number, because it can be changed into a prime (25406662049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968425 + ... + 994313.

It is an arithmetic number, because the mean of its divisors is an integer number (1238836500).

Almost surely, 2^25406662041 is an apocalyptic number.

It is an amenable number.

25406662041 is a deficient number, since it is larger than the sum of its proper divisors (14236105959).

25406662041 is a wasteful number, since it uses less digits than its factorization.

25406662041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27830 (or 27824 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 25406662041 in words is "twenty-five billion, four hundred six million, six hundred sixty-two thousand, forty-one".