25306061 has 12 divisors (see below), whose sum is σ = 28499772. Its totient is φ = 22440000.

The previous prime is 25306031. The next prime is 25306063. The reversal of 25306061 is 16060352.

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 24940036 = 605^2 + 4994^2 .

It is not a de Polignac number, because 25306061 - 2¹⁸ = 25043917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25306063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2411 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (2374981).

Almost surely, 2^25306061 is an apocalyptic number.

It is an amenable number.

25306061 is a deficient number, since it is larger than the sum of its proper divisors (3193711).

25306061 is a wasteful number, since it uses less digits than its factorization.

25306061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5164 (or 5153 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 25306061 is about 5030.5129957093. The cubic root of 25306061 is about 293.5901743514.

The spelling of 25306061 in words is "twenty-five million, three hundred six thousand, sixty-one".