25065785 has 8 divisors (see below), whose sum is σ = 30246216. Its totient is φ = 19941120.

The previous prime is 25065779. The next prime is 25065793. The reversal of 25065785 is 58756052.

25065785 = 61² + 62² + ... + 422².

It can be written as a sum of positive squares in 4 ways, for example, as 3041536 + 22024249 = 1744^2 + 4693^2 .

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

It is not a de Polignac number, because 25065785 - 2¹⁸ = 24803641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12944 + ... + 14753.

It is an arithmetic number, because the mean of its divisors is an integer number (3780777).

Almost surely, 2^25065785 is an apocalyptic number.

It is an amenable number.

25065785 is a deficient number, since it is larger than the sum of its proper divisors (5180431).

25065785 is a wasteful number, since it uses less digits than its factorization.

25065785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27883.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 25065785 is about 5006.5741780183. The cubic root of 25065785 is about 292.6580245291.

The spelling of 25065785 in words is "twenty-five million, sixty-five thousand, seven hundred eighty-five".