25053905 has 4 divisors (see below), whose sum is σ = 30064692. Its totient is φ = 20043120.

The previous prime is 25053893. The next prime is 25053947. The reversal of 25053905 is 50935052.

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 14190289 + 10863616 = 3767^2 + 3296^2 .

It is not a de Polignac number, because 25053905 - 2¹⁴ = 25037521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505386 + ... + 2505395.

It is an arithmetic number, because the mean of its divisors is an integer number (7516173).

Almost surely, 2^25053905 is an apocalyptic number.

It is an amenable number.

25053905 is a deficient number, since it is larger than the sum of its proper divisors (5010787).

25053905 is an equidigital number, since it uses as much as digits as its factorization.

25053905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5010786.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 25053905 is about 5005.3875973794. The cubic root of 25053905 is about 292.6117818553.

Adding to 25053905 its reverse (50935052), we get a palindrome (75988957).

The spelling of 25053905 in words is "twenty-five million, fifty-three thousand, nine hundred five".