25317233471 has 2 divisors, whose sum is σ = 25317233472. Its totient is φ = 25317233470.

The previous prime is 25317233443. The next prime is 25317233483. The reversal of 25317233471 is 17433271352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25317233471 - 2¹⁸ = 25316971327 is a prime.

It is a super-3 number, since 3×25317233471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25317233771) 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, 12658616735 + 12658616736.

It is an arithmetic number, because the mean of its divisors is an integer number (12658616736).

Almost surely, 2^25317233471 is an apocalyptic number.

25317233471 is a deficient number, since it is larger than the sum of its proper divisors (1).

25317233471 is an equidigital number, since it uses as much as digits as its factorization.

25317233471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 38.

The spelling of 25317233471 in words is "twenty-five billion, three hundred seventeen million, two hundred thirty-three thousand, four hundred seventy-one".