25678345 has 16 divisors (see below), whose sum is σ = 38418048. Its totient is φ = 16007040.

The previous prime is 25678343. The next prime is 25678349. The reversal of 25678345 is 54387652.

It is not a de Polignac number, because 25678345 - 2¹ = 25678343 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25678298 and 25678307.

It is not an unprimeable number, because it can be changed into a prime (25678343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32964 + ... + 33733.

It is an arithmetic number, because the mean of its divisors is an integer number (2401128).

Almost surely, 2^25678345 is an apocalyptic number.

It is an amenable number.

25678345 is a deficient number, since it is larger than the sum of its proper divisors (12739703).

25678345 is a wasteful number, since it uses less digits than its factorization.

25678345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66720.

The product of its digits is 201600, while the sum is 40.

The square root of 25678345 is about 5067.3804869972. The cubic root of 25678345 is about 295.0228652199.

The spelling of 25678345 in words is "twenty-five million, six hundred seventy-eight thousand, three hundred forty-five".