25705061 has 4 divisors (see below), whose sum is σ = 26140800. Its totient is φ = 25269324.

The previous prime is 25705039. The next prime is 25705063. The reversal of 25705061 is 16050752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25705061 - 2¹⁰ = 25704037 is a prime.

It is a super-2 number, since 2×25705061² = 1321500322027442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25705061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25705063) 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 3 ways as a sum of consecutive naturals, for example, 217781 + ... + 217898.

It is an arithmetic number, because the mean of its divisors is an integer number (6535200).

Almost surely, 2^25705061 is an apocalyptic number.

It is an amenable number.

25705061 is a deficient number, since it is larger than the sum of its proper divisors (435739).

25705061 is an equidigital number, since it uses as much as digits as its factorization.

25705061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435738.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 25705061 is about 5070.0158776872. The cubic root of 25705061 is about 295.1251446439.

The spelling of 25705061 in words is "twenty-five million, seven hundred five thousand, sixty-one".