25808948 has 12 divisors (see below), whose sum is σ = 49271712. Its totient is φ = 11731320.

The previous prime is 25808947. The next prime is 25808977. The reversal of 25808948 is 84980852.

25808948 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×25808948² = 1332203593733408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 586567 = 25808948 / (2 + 5 + 8 + 0 + 8 + 9 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 25808899 and 25808908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25808947) 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, 293240 + ... + 293327.

It is an arithmetic number, because the mean of its divisors is an integer number (4105976).

Almost surely, 2^25808948 is an apocalyptic number.

It is an amenable number.

25808948 is a deficient number, since it is larger than the sum of its proper divisors (23462764).

25808948 is a wasteful number, since it uses less digits than its factorization.

25808948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586582 (or 586580 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 25808948 is about 5080.2507812115. The cubic root of 25808948 is about 295.5221929750.

The spelling of 25808948 in words is "twenty-five million, eight hundred eight thousand, nine hundred forty-eight".