25350506 has 4 divisors (see below), whose sum is σ = 38025762. Its totient is φ = 12675252.

The previous prime is 25350497. The next prime is 25350509. The reversal of 25350506 is 60505352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16736281 + 8614225 = 4091^2 + 2935^2 .

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 as a sum of consecutive naturals, namely, 6337625 + ... + 6337628.

Almost surely, 2^25350506 is an apocalyptic number.

25350506 is a deficient number, since it is larger than the sum of its proper divisors (12675256).

25350506 is a wasteful number, since it uses less digits than its factorization.

25350506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675255.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 25350506 is about 5034.9285992951. The cubic root of 25350506 is about 293.7619511661.

Adding to 25350506 its reverse (60505352), we get a palindrome (85855858).

The spelling of 25350506 in words is "twenty-five million, three hundred fifty thousand, five hundred six".