25678701 has 10 divisors (see below), whose sum is σ = 38359662. Its totient is φ = 17119080.

The previous prime is 25678691. The next prime is 25678733. The reversal of 25678701 is 10787652.

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 6625476 = 4365^2 + 2574^2 .

It is not a de Polignac number, because 25678701 - 2⁶ = 25678637 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25678771) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 158430 + ... + 158591.

Almost surely, 2^25678701 is an apocalyptic number.

It is an amenable number.

25678701 is a deficient number, since it is larger than the sum of its proper divisors (12680961).

25678701 is an equidigital number, since it uses as much as digits as its factorization.

25678701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317033 (or 317024 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 25678701 is about 5067.4156135056. The cubic root of 25678701 is about 295.0242285951.

The spelling of 25678701 in words is "twenty-five million, six hundred seventy-eight thousand, seven hundred one".