25541825 has 6 divisors (see below), whose sum is σ = 31671894. Its totient is φ = 20433440.

The previous prime is 25541809. The next prime is 25541851. The reversal of 25541825 is 52814552.

It can be written as a sum of positive squares in 3 ways, for example, as 1256641 + 24285184 = 1121^2 + 4928^2 .

It is not a de Polignac number, because 25541825 - 2⁴ = 25541809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25541791 and 25541800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 510812 + ... + 510861.

It is an arithmetic number, because the mean of its divisors is an integer number (5278649).

Almost surely, 2^25541825 is an apocalyptic number.

25541825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25541825 is a deficient number, since it is larger than the sum of its proper divisors (6130069).

25541825 is a wasteful number, since it uses less digits than its factorization.

25541825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021683 (or 1021678 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 25541825 is about 5053.8920645380. The cubic root of 25541825 is about 294.4991020983.

The spelling of 25541825 in words is "twenty-five million, five hundred forty-one thousand, eight hundred twenty-five".