25311401504005 has 16 divisors (see below), whose sum is σ = 30451382304048. Its totient is φ = 20197327360000.

The previous prime is 25311401503987. The next prime is 25311401504029. The reversal of 25311401504005 is 50040510411352.

It can be written as a sum of positive squares in 8 ways, for example, as 991502130564 + 24319899373441 = 995742^2 + 4931521^2 .

It is not a de Polignac number, because 25311401504005 - 2⁷ = 25311401503877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31443945 + ... + 32238865.

It is an arithmetic number, because the mean of its divisors is an integer number (1903211394003).

Almost surely, 2^{25311401504005} is an apocalyptic number.

It is an amenable number.

25311401504005 is a deficient number, since it is larger than the sum of its proper divisors (5139980800043).

25311401504005 is a wasteful number, since it uses less digits than its factorization.

25311401504005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811208.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 25311401504005 its reverse (50040510411352), we get a palindrome (75351911915357).

The spelling of 25311401504005 in words is "twenty-five trillion, three hundred eleven billion, four hundred one million, five hundred four thousand, five".