25717007 has 2 divisors, whose sum is σ = 25717008. Its totient is φ = 25717006.

The previous prime is 25716991. The next prime is 25717033. The reversal of 25717007 is 70071752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25717007 - 2⁴ = 25716991 is a prime.

It is a super-2 number, since 2×25717007² = 1322728898076098, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25717067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12858503 + 12858504.

It is an arithmetic number, because the mean of its divisors is an integer number (12858504).

Almost surely, 2^25717007 is an apocalyptic number.

25717007 is a deficient number, since it is larger than the sum of its proper divisors (1).

25717007 is an equidigital number, since it uses as much as digits as its factorization.

25717007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 25717007 is about 5071.1938436625. The cubic root of 25717007 is about 295.1708557325.

Adding to 25717007 its reverse (70071752), we get a palindrome (95788759).

The spelling of 25717007 in words is "twenty-five million, seven hundred seventeen thousand, seven".