25400334101 has 2 divisors, whose sum is σ = 25400334102. Its totient is φ = 25400334100.

The previous prime is 25400334077. The next prime is 25400334121. The reversal of 25400334101 is 10143300452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25042746001 + 357588100 = 158249^2 + 18910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25400334101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25400334121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12700167050 + 12700167051.

It is an arithmetic number, because the mean of its divisors is an integer number (12700167051).

Almost surely, 2^25400334101 is an apocalyptic number.

It is an amenable number.

25400334101 is a deficient number, since it is larger than the sum of its proper divisors (1).

25400334101 is an equidigital number, since it uses as much as digits as its factorization.

25400334101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 25400334101 its reverse (10143300452), we get a palindrome (35543634553).

The spelling of 25400334101 in words is "twenty-five billion, four hundred million, three hundred thirty-four thousand, one hundred one".