25030105 has 4 divisors (see below), whose sum is σ = 30036132. Its totient is φ = 20024080.

The previous prime is 25030099. The next prime is 25030121. The reversal of 25030105 is 50103052.

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 3426201 + 21603904 = 1851^2 + 4648^2 .

It is not a de Polignac number, because 25030105 - 2³ = 25030097 is a prime.

It is a super-2 number, since 2×25030105² = 1253012312622050, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

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, 2503006 + ... + 2503015.

It is an arithmetic number, because the mean of its divisors is an integer number (7509033).

Almost surely, 2^25030105 is an apocalyptic number.

It is an amenable number.

25030105 is a deficient number, since it is larger than the sum of its proper divisors (5006027).

25030105 is an equidigital number, since it uses as much as digits as its factorization.

25030105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006026.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 25030105 is about 5003.0095942343. The cubic root of 25030105 is about 292.5190968124.

Adding to 25030105 its reverse (50103052), we get a palindrome (75133157).

The spelling of 25030105 in words is "twenty-five million, thirty thousand, one hundred five".