25045765 has 16 divisors (see below), whose sum is σ = 30700800. Its totient is φ = 19611072.

The previous prime is 25045721. The next prime is 25045771. The reversal of 25045765 is 56754052.

It is a cyclic number.

It is not a de Polignac number, because 25045765 - 2⁹ = 25045253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25045765.

It is a congruent number.

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, 64191 + ... + 64579.

It is an arithmetic number, because the mean of its divisors is an integer number (1918800).

Almost surely, 2^25045765 is an apocalyptic number.

It is an amenable number.

25045765 is a deficient number, since it is larger than the sum of its proper divisors (5655035).

25045765 is a wasteful number, since it uses less digits than its factorization.

25045765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 25045765 is about 5004.5744074796. The cubic root of 25045765 is about 292.5800886202.

The spelling of 25045765 in words is "twenty-five million, forty-five thousand, seven hundred sixty-five".