25400334005 has 8 divisors (see below), whose sum is σ = 31055503032. Its totient is φ = 19936865728.

The previous prime is 25400333927. The next prime is 25400334031. The reversal of 25400334005 is 50043300452.

It can be written as a sum of positive squares in 4 ways, for example, as 9699492196 + 15700841809 = 98486^2 + 125303^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25400334005 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 7 ways as a sum of consecutive naturals, for example, 47924894 + ... + 47925423.

It is an arithmetic number, because the mean of its divisors is an integer number (3881937879).

Almost surely, 2^25400334005 is an apocalyptic number.

It is an amenable number.

25400334005 is a deficient number, since it is larger than the sum of its proper divisors (5655169027).

25400334005 is an equidigital number, since it uses as much as digits as its factorization.

25400334005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95850375.

The product of its (nonzero) digits is 7200, while the sum is 26.

Adding to 25400334005 its reverse (50043300452), we get a palindrome (75443634457).

The spelling of 25400334005 in words is "twenty-five billion, four hundred million, three hundred thirty-four thousand, five".