25252705 has 8 divisors (see below), whose sum is σ = 30414312. Its totient is φ = 20128128.

The previous prime is 25252697. The next prime is 25252723. The reversal of 25252705 is 50725252.

It can be written as a sum of positive squares in 4 ways, for example, as 1115136 + 24137569 = 1056^2 + 4913^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25252705 - 2³ = 25252697 is a prime.

It is an alternating number because its digits alternate between even and odd.

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, 7732 + ... + 10501.

It is an arithmetic number, because the mean of its divisors is an integer number (3801789).

Almost surely, 2^25252705 is an apocalyptic number.

It is an amenable number.

25252705 is a deficient number, since it is larger than the sum of its proper divisors (5161607).

25252705 is a wasteful number, since it uses less digits than its factorization.

25252705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18515.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 25252705 is about 5025.2069609122. The cubic root of 25252705 is about 293.3836912797.

Adding to 25252705 its reverse (50725252), we get a palindrome (75977957).

The spelling of 25252705 in words is "twenty-five million, two hundred fifty-two thousand, seven hundred five".