25650530 has 8 divisors (see below), whose sum is σ = 46170972. Its totient is φ = 10260208.

The previous prime is 25650517. The next prime is 25650533. The reversal of 25650530 is 3505652.

It can be written as a sum of positive squares in 2 ways, for example, as 24019801 + 1630729 = 4901^2 + 1277^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 25650530.

It is not an unprimeable number, because it can be changed into a prime (25650533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282517 + ... + 1282536.

Almost surely, 2^25650530 is an apocalyptic number.

25650530 is a deficient number, since it is larger than the sum of its proper divisors (20520442).

25650530 is a wasteful number, since it uses less digits than its factorization.

25650530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565060.

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

The square root of 25650530 is about 5064.6352287208. The cubic root of 25650530 is about 294.9163029819.

The spelling of 25650530 in words is "twenty-five million, six hundred fifty thousand, five hundred thirty".