25485485 has 4 divisors (see below), whose sum is σ = 30582588. Its totient is φ = 20388384.

The previous prime is 25485469. The next prime is 25485487. The reversal of 25485485 is 58458452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4380649 + 21104836 = 2093^2 + 4594^2 .

It is a cyclic number.

It is not a de Polignac number, because 25485485 - 2⁴ = 25485469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25485487) 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, 2548544 + ... + 2548553.

It is an arithmetic number, because the mean of its divisors is an integer number (7645647).

Almost surely, 2^25485485 is an apocalyptic number.

It is an amenable number.

25485485 is a deficient number, since it is larger than the sum of its proper divisors (5097103).

25485485 is an equidigital number, since it uses as much as digits as its factorization.

25485485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097102.

The product of its digits is 256000, while the sum is 41.

The square root of 25485485 is about 5048.3150654451. The cubic root of 25485485 is about 294.2824079251.

The spelling of 25485485 in words is "twenty-five million, four hundred eighty-five thousand, four hundred eighty-five".