25604609141 has 2 divisors, whose sum is σ = 25604609142. Its totient is φ = 25604609140.

The previous prime is 25604609137. The next prime is 25604609189. The reversal of 25604609141 is 14190640652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23438079025 + 2166530116 = 153095^2 + 46546^2 .

It is a cyclic number.

It is not a de Polignac number, because 25604609141 - 2² = 25604609137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25604609095 and 25604609104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25604609441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12802304570 + 12802304571.

It is an arithmetic number, because the mean of its divisors is an integer number (12802304571).

Almost surely, 2^25604609141 is an apocalyptic number.

It is an amenable number.

25604609141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25604609141 is an equidigital number, since it uses as much as digits as its factorization.

25604609141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 25604609141 in words is "twenty-five billion, six hundred four million, six hundred nine thousand, one hundred forty-one".