25901207 has 4 divisors (see below), whose sum is σ = 25918200. Its totient is φ = 25884216.

The previous prime is 25901201. The next prime is 25901233. The reversal of 25901207 is 70210952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25901207 - 2⁶ = 25901143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25901201) 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 in 3 ways as a sum of consecutive naturals, for example, 5957 + ... + 9342.

It is an arithmetic number, because the mean of its divisors is an integer number (6479550).

Almost surely, 2^25901207 is an apocalyptic number.

25901207 is a deficient number, since it is larger than the sum of its proper divisors (16993).

25901207 is a wasteful number, since it uses less digits than its factorization.

25901207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16992.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 25901207 is about 5089.3228429723. The cubic root of 25901207 is about 295.8739076708.

The spelling of 25901207 in words is "twenty-five million, nine hundred one thousand, two hundred seven".