25650601 has 4 divisors (see below), whose sum is σ = 25938900. Its totient is φ = 25362304.

The previous prime is 25650577. The next prime is 25650607. The reversal of 25650601 is 10605652.

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 3097600 + 22553001 = 1760^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 25650601 - 2⁷ = 25650473 is a prime.

It is a super-2 number, since 2×25650601² = 1315906663322402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25650607) 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, 144016 + ... + 144193.

It is an arithmetic number, because the mean of its divisors is an integer number (6484725).

Almost surely, 2^25650601 is an apocalyptic number.

It is an amenable number.

25650601 is a deficient number, since it is larger than the sum of its proper divisors (288299).

25650601 is an equidigital number, since it uses as much as digits as its factorization.

25650601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288298.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25650601 is about 5064.6422381053. The cubic root of 25650601 is about 294.9165750885.

The spelling of 25650601 in words is "twenty-five million, six hundred fifty thousand, six hundred one".