25060661 has 2 divisors, whose sum is σ = 25060662. Its totient is φ = 25060660.

The previous prime is 25060649. The next prime is 25060697. The reversal of 25060661 is 16606052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25060036 + 625 = 5006^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 25060661 - 2⁶ = 25060597 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25060661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25060631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12530330 + 12530331.

It is an arithmetic number, because the mean of its divisors is an integer number (12530331).

Almost surely, 2^25060661 is an apocalyptic number.

It is an amenable number.

25060661 is a deficient number, since it is larger than the sum of its proper divisors (1).

25060661 is an equidigital number, since it uses as much as digits as its factorization.

25060661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 25060661 is about 5006.0624247007. The cubic root of 25060661 is about 292.6380812490.

The spelling of 25060661 in words is "twenty-five million, sixty thousand, six hundred sixty-one".