25511325 has 24 divisors (see below), whose sum is σ = 48205248. Its totient is φ = 11662080.

The previous prime is 25511267. The next prime is 25511327. The reversal of 25511325 is 52311552.

It is a happy number.

It is not a de Polignac number, because 25511325 - 2⁹ = 25510813 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25511295 and 25511304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25511327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23772 + ... + 24821.

It is an arithmetic number, because the mean of its divisors is an integer number (2008552).

Almost surely, 2^25511325 is an apocalyptic number.

25511325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25511325 is a deficient number, since it is larger than the sum of its proper divisors (22693923).

25511325 is a wasteful number, since it uses less digits than its factorization.

25511325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48613 (or 48608 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 25511325 is about 5050.8736867991. The cubic root of 25511325 is about 294.3818330012.

Adding to 25511325 its reverse (52311552), we get a palindrome (77822877).

The spelling of 25511325 in words is "twenty-five million, five hundred eleven thousand, three hundred twenty-five".