25683745 has 16 divisors (see below), whose sum is σ = 31658688. Its totient is φ = 19995840.

The previous prime is 25683739. The next prime is 25683751. The reversal of 25683745 is 54738652.

It is an interprime number because it is at equal distance from previous prime (25683739) and next prime (25683751).

It is not a de Polignac number, because 25683745 - 2⁹ = 25683233 is a prime.

It is a Duffinian number.

Its product of digits (201600) is a multiple of the sum of its prime divisors (960).

It is a junction number, because it is equal to n+sod(n) for n = 25683698 and 25683707.

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 15 ways as a sum of consecutive naturals, for example, 32242 + ... + 33028.

It is an arithmetic number, because the mean of its divisors is an integer number (1978668).

Almost surely, 2^25683745 is an apocalyptic number.

It is an amenable number.

25683745 is a deficient number, since it is larger than the sum of its proper divisors (5974943).

25683745 is a wasteful number, since it uses less digits than its factorization.

25683745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

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

The square root of 25683745 is about 5067.9132786582. The cubic root of 25683745 is about 295.0435442760.

The spelling of 25683745 in words is "twenty-five million, six hundred eighty-three thousand, seven hundred forty-five".