25530007 has 2 divisors, whose sum is σ = 25530008. Its totient is φ = 25530006.

The previous prime is 25529993. The next prime is 25530013. The reversal of 25530007 is 70003552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25530007 - 2¹⁵ = 25497239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25530007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25530607) 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, 12765003 + 12765004.

It is an arithmetic number, because the mean of its divisors is an integer number (12765004).

Almost surely, 2^25530007 is an apocalyptic number.

25530007 is a deficient number, since it is larger than the sum of its proper divisors (1).

25530007 is an equidigital number, since it uses as much as digits as its factorization.

25530007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 25530007 is about 5052.7227313598. The cubic root of 25530007 is about 294.4536742911.

Adding to 25530007 its reverse (70003552), we get a palindrome (95533559).

The spelling of 25530007 in words is "twenty-five million, five hundred thirty thousand, seven".