25081471 has 2 divisors, whose sum is σ = 25081472. Its totient is φ = 25081470.

The previous prime is 25081439. The next prime is 25081481. The reversal of 25081471 is 17418052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25081471 - 2⁵ = 25081439 is a prime.

It is a super-3 number, since 3×25081471³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25081411) 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, 12540735 + 12540736.

It is an arithmetic number, because the mean of its divisors is an integer number (12540736).

Almost surely, 2^25081471 is an apocalyptic number.

25081471 is a deficient number, since it is larger than the sum of its proper divisors (1).

25081471 is an equidigital number, since it uses as much as digits as its factorization.

25081471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 25081471 is about 5008.1404732695. The cubic root of 25081471 is about 292.7190596081.

It can be divided in two parts, 25081 and 471, that added together give a palindrome (25552).

The spelling of 25081471 in words is "twenty-five million, eighty-one thousand, four hundred seventy-one".