25678481 has 8 divisors (see below), whose sum is σ = 27761280. Its totient is φ = 23668848.

The previous prime is 25678379. The next prime is 25678493. The reversal of 25678481 is 18487652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25678481 - 2¹⁴ = 25662097 is a prime.

It is a super-2 number, since 2×25678481² = 1318768772934722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25678781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17561 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (3470160).

Almost surely, 2^25678481 is an apocalyptic number.

It is an amenable number.

25678481 is a deficient number, since it is larger than the sum of its proper divisors (2082799).

25678481 is a wasteful number, since it uses less digits than its factorization.

25678481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36583.

The product of its digits is 107520, while the sum is 41.

The square root of 25678481 is about 5067.3939061415. The cubic root of 25678481 is about 295.0233860614.

The spelling of 25678481 in words is "twenty-five million, six hundred seventy-eight thousand, four hundred eighty-one".