25460081 has 2 divisors, whose sum is σ = 25460082. Its totient is φ = 25460080.

The previous prime is 25460069. The next prime is 25460131. The reversal of 25460081 is 18006452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25411681 + 48400 = 5041^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 25460081 - 2¹⁸ = 25197937 is a prime.

It is a super-2 number, since 2×25460081² = 1296431449053122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25460081.

It is not a weakly prime, because it can be changed into another prime (25460051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730040 + 12730041.

It is an arithmetic number, because the mean of its divisors is an integer number (12730041).

Almost surely, 2^25460081 is an apocalyptic number.

It is an amenable number.

25460081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25460081 is an equidigital number, since it uses as much as digits as its factorization.

25460081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 25460081 is about 5045.7983511036. The cubic root of 25460081 is about 294.1845949192.

The spelling of 25460081 in words is "twenty-five million, four hundred sixty thousand, eighty-one".