25980207 has 16 divisors (see below), whose sum is σ = 37880832. Its totient is φ = 15707520.

The previous prime is 25980193. The next prime is 25980209. The reversal of 25980207 is 70208952.

It is not a de Polignac number, because 25980207 - 2⁴ = 25980191 is a prime.

It is a super-4 number, since 4×25980207⁴ (a number of 31 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25980209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19383 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (2367552).

Almost surely, 2^25980207 is an apocalyptic number.

25980207 is a deficient number, since it is larger than the sum of its proper divisors (11900625).

25980207 is a wasteful number, since it uses less digits than its factorization.

25980207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 25980207 is about 5097.0782807408. The cubic root of 25980207 is about 296.1744125197.

The spelling of 25980207 in words is "twenty-five million, nine hundred eighty thousand, two hundred seven".