25345745 has 8 divisors (see below), whose sum is σ = 30441960. Its totient is φ = 20258560.

The previous prime is 25345741. The next prime is 25345811. The reversal of 25345745 is 54754352.

It can be written as a sum of positive squares in 4 ways, for example, as 863041 + 24482704 = 929^2 + 4948^2 .

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

It is not a de Polignac number, because 25345745 - 2² = 25345741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25345741) 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 7 ways as a sum of consecutive naturals, for example, 9455 + ... + 11835.

It is an arithmetic number, because the mean of its divisors is an integer number (3805245).

Almost surely, 2^25345745 is an apocalyptic number.

It is an amenable number.

25345745 is a deficient number, since it is larger than the sum of its proper divisors (5096215).

25345745 is a wasteful number, since it uses less digits than its factorization.

25345745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515.

The product of its digits is 84000, while the sum is 35.

The square root of 25345745 is about 5034.4557799230. The cubic root of 25345745 is about 293.7435598407.

The spelling of 25345745 in words is "twenty-five million, three hundred forty-five thousand, seven hundred forty-five".