25132105 has 4 divisors (see below), whose sum is σ = 30158532. Its totient is φ = 20105680.

The previous prime is 25132097. The next prime is 25132109. The reversal of 25132105 is 50123152.

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 9259849 + 15872256 = 3043^2 + 3984^2 .

It is not a de Polignac number, because 25132105 - 2³ = 25132097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25132109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513206 + ... + 2513215.

It is an arithmetic number, because the mean of its divisors is an integer number (7539633).

Almost surely, 2^25132105 is an apocalyptic number.

It is an amenable number.

25132105 is a deficient number, since it is larger than the sum of its proper divisors (5026427).

25132105 is an equidigital number, since it uses as much as digits as its factorization.

25132105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026426.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 25132105 is about 5013.1930942265. The cubic root of 25132105 is about 292.9159057743.

Adding to 25132105 its reverse (50123152), we get a palindrome (75255257).

The spelling of 25132105 in words is "twenty-five million, one hundred thirty-two thousand, one hundred five".