25678263 has 8 divisors (see below), whose sum is σ = 36871408. Its totient is φ = 15801984.

The previous prime is 25678249. The next prime is 25678297. The reversal of 25678263 is 36287652.

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

It is a de Polignac number, because none of the positive numbers 2^k-25678263 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 658417 = 25678263 / (2 + 5 + 6 + 7 + 8 + 2 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25678223) 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, 329170 + ... + 329247.

It is an arithmetic number, because the mean of its divisors is an integer number (4608926).

Almost surely, 2^25678263 is an apocalyptic number.

25678263 is a deficient number, since it is larger than the sum of its proper divisors (11193145).

25678263 is a wasteful number, since it uses less digits than its factorization.

25678263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658433.

The product of its digits is 120960, while the sum is 39.

The square root of 25678263 is about 5067.3723960254. The cubic root of 25678263 is about 295.0225511823.

The spelling of 25678263 in words is "twenty-five million, six hundred seventy-eight thousand, two hundred sixty-three".