25604101 has 2 divisors, whose sum is σ = 25604102. Its totient is φ = 25604100.

The previous prime is 25604069. The next prime is 25604113. The reversal of 25604101 is 10140652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25553025 + 51076 = 5055^2 + 226^2 .

It is a cyclic number.

It is not a de Polignac number, because 25604101 - 2⁵ = 25604069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25608101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12802050 + 12802051.

It is an arithmetic number, because the mean of its divisors is an integer number (12802051).

Almost surely, 2^25604101 is an apocalyptic number.

It is an amenable number.

25604101 is a deficient number, since it is larger than the sum of its proper divisors (1).

25604101 is an equidigital number, since it uses as much as digits as its factorization.

25604101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 25604101 is about 5060.0495056867. The cubic root of 25604101 is about 294.7382567730.

Adding to 25604101 its reverse (10140652), we get a palindrome (35744753).

The spelling of 25604101 in words is "twenty-five million, six hundred four thousand, one hundred one".