25396406005 has 8 divisors (see below), whose sum is σ = 30477361824. Its totient is φ = 20316008400.

The previous prime is 25396406003. The next prime is 25396406011. The reversal of 25396406005 is 50060469352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25396406005 - 2¹ = 25396406003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25396406003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31911 + ... + 227620.

It is an arithmetic number, because the mean of its divisors is an integer number (3809670228).

Almost surely, 2^25396406005 is an apocalyptic number.

It is an amenable number.

25396406005 is a deficient number, since it is larger than the sum of its proper divisors (5080955819).

25396406005 is a wasteful number, since it uses less digits than its factorization.

25396406005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279107.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 25396406005 in words is "twenty-five billion, three hundred ninety-six million, four hundred six thousand, five".