25206065 has 32 divisors (see below), whose sum is σ = 33488640. Its totient is φ = 18144000.

The previous prime is 25206061. The next prime is 25206067. The reversal of 25206065 is 56060252.

It is a happy number.

It is not a de Polignac number, because 25206065 - 2² = 25206061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25206061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249515 + ... + 249615.

It is an arithmetic number, because the mean of its divisors is an integer number (1046520).

Almost surely, 2^25206065 is an apocalyptic number.

It is an amenable number.

25206065 is a deficient number, since it is larger than the sum of its proper divisors (8282575).

25206065 is a wasteful number, since it uses less digits than its factorization.

25206065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 25206065 is about 5020.5642113213. The cubic root of 25206065 is about 293.2029601709.

The spelling of 25206065 in words is "twenty-five million, two hundred six thousand, sixty-five".