25857948 has 12 divisors (see below), whose sum is σ = 60335240. Its totient is φ = 8619312.

The previous prime is 25857929. The next prime is 25857967. The reversal of 25857948 is 84975852.

It is an interprime number because it is at equal distance from previous prime (25857929) and next prime (25857967).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 25857897 and 25857906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077403 + ... + 1077426.

Almost surely, 2^25857948 is an apocalyptic number.

It is an amenable number.

25857948 is an abundant number, since it is smaller than the sum of its proper divisors (34477292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25857948 is a wasteful number, since it uses less digits than its factorization.

25857948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154836 (or 2154834 counting only the distinct ones).

The product of its digits is 806400, while the sum is 48.

The square root of 25857948 is about 5085.0710909485. The cubic root of 25857948 is about 295.7090975709.

The spelling of 25857948 in words is "twenty-five million, eight hundred fifty-seven thousand, nine hundred forty-eight".