25461187 has 2 divisors, whose sum is σ = 25461188. Its totient is φ = 25461186.

The previous prime is 25461181. The next prime is 25461211. The reversal of 25461187 is 78116452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25461187 - 2²³ = 17072579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25461181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730593 + 12730594.

It is an arithmetic number, because the mean of its divisors is an integer number (12730594).

Almost surely, 2^25461187 is an apocalyptic number.

25461187 is a deficient number, since it is larger than the sum of its proper divisors (1).

25461187 is an equidigital number, since it uses as much as digits as its factorization.

25461187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 34.

The square root of 25461187 is about 5045.9079460490. The cubic root of 25461187 is about 294.1888547047.

The spelling of 25461187 in words is "twenty-five million, four hundred sixty-one thousand, one hundred eighty-seven".