25750745 has 4 divisors (see below), whose sum is σ = 30900900. Its totient is φ = 20600592.

The previous prime is 25750741. The next prime is 25750759. The reversal of 25750745 is 54705752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 14047504 = 3421^2 + 3748^2 .

It is a cyclic number.

It is not a de Polignac number, because 25750745 - 2² = 25750741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25750741) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2575070 + ... + 2575079.

It is an arithmetic number, because the mean of its divisors is an integer number (7725225).

Almost surely, 2^25750745 is an apocalyptic number.

It is an amenable number.

25750745 is a deficient number, since it is larger than the sum of its proper divisors (5150155).

25750745 is an equidigital number, since it uses as much as digits as its factorization.

25750745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150154.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 25750745 is about 5074.5191890464. The cubic root of 25750745 is about 295.2998770021.

The spelling of 25750745 in words is "twenty-five million, seven hundred fifty thousand, seven hundred forty-five".