25350505 has 8 divisors (see below), whose sum is σ = 31162824. Its totient is φ = 19785600.

The previous prime is 25350497. The next prime is 25350509. The reversal of 25350505 is 50505352.

It can be written as a sum of positive squares in 4 ways, for example, as 937024 + 24413481 = 968^2 + 4941^2 .

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

It is not a de Polignac number, because 25350505 - 2³ = 25350497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25350505.

It is not an unprimeable number, because it can be changed into a prime (25350509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61626 + ... + 62035.

It is an arithmetic number, because the mean of its divisors is an integer number (3895353).

Almost surely, 2^25350505 is an apocalyptic number.

It is an amenable number.

25350505 is a deficient number, since it is larger than the sum of its proper divisors (5812319).

25350505 is a wasteful number, since it uses less digits than its factorization.

25350505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123707.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 25350505 is about 5034.9284999889. The cubic root of 25350505 is about 293.7619473034.

Adding to 25350505 its reverse (50505352), we get a palindrome (75855857).

The spelling of 25350505 in words is "twenty-five million, three hundred fifty thousand, five hundred five".