25134767447 has 2 divisors, whose sum is σ = 25134767448. Its totient is φ = 25134767446.

The previous prime is 25134767423. The next prime is 25134767467. The reversal of 25134767447 is 74476743152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25134767447 - 2¹² = 25134763351 is a prime.

It is a super-2 number, since 2×25134767447² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25134767395 and 25134767404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25134767417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12567383723 + 12567383724.

It is an arithmetic number, because the mean of its divisors is an integer number (12567383724).

Almost surely, 2^25134767447 is an apocalyptic number.

25134767447 is a deficient number, since it is larger than the sum of its proper divisors (1).

25134767447 is an equidigital number, since it uses as much as digits as its factorization.

25134767447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3951360, while the sum is 50.

The spelling of 25134767447 in words is "twenty-five billion, one hundred thirty-four million, seven hundred sixty-seven thousand, four hundred forty-seven".