25570201 has 4 divisors (see below), whose sum is σ = 25804900. Its totient is φ = 25335504.

The previous prime is 25570169. The next prime is 25570231. The reversal of 25570201 is 10207552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18913801 + 6656400 = 4349^2 + 2580^2 .

It is a cyclic number.

It is not a de Polignac number, because 25570201 - 2⁵ = 25570169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25570231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117186 + ... + 117403.

It is an arithmetic number, because the mean of its divisors is an integer number (6451225).

Almost surely, 2^25570201 is an apocalyptic number.

It is an amenable number.

25570201 is a deficient number, since it is larger than the sum of its proper divisors (234699).

25570201 is a wasteful number, since it uses less digits than its factorization.

25570201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234698.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 25570201 is about 5056.6986265745. The cubic root of 25570201 is about 294.6081208518.

Adding to 25570201 its reverse (10207552), we get a palindrome (35777753).

The spelling of 25570201 in words is "twenty-five million, five hundred seventy thousand, two hundred one".