25084987 has 2 divisors, whose sum is σ = 25084988. Its totient is φ = 25084986.

The previous prime is 25084957. The next prime is 25084991. The reversal of 25084987 is 78948052.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25084987 is a prime.

It is not a weakly prime, because it can be changed into another prime (25084937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12542493 + 12542494.

It is an arithmetic number, because the mean of its divisors is an integer number (12542494).

Almost surely, 2^25084987 is an apocalyptic number.

25084987 is a deficient number, since it is larger than the sum of its proper divisors (1).

25084987 is an equidigital number, since it uses as much as digits as its factorization.

25084987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 25084987 is about 5008.4914894607. The cubic root of 25084987 is about 292.7327370638.

The spelling of 25084987 in words is "twenty-five million, eighty-four thousand, nine hundred eighty-seven".