25650529 has 4 divisors (see below), whose sum is σ = 26535060. Its totient is φ = 24766000.

The previous prime is 25650517. The next prime is 25650533. The reversal of 25650529 is 92505652.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6640929 + 19009600 = 2577^2 + 4360^2 .

It is not a de Polignac number, because 25650529 - 2⁹ = 25650017 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25650494 and 25650503.

It is not an unprimeable number, because it can be changed into a prime (25650539) 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, 442222 + ... + 442279.

It is an arithmetic number, because the mean of its divisors is an integer number (6633765).

Almost surely, 2^25650529 is an apocalyptic number.

25650529 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

25650529 is a deficient number, since it is larger than the sum of its proper divisors (884531).

25650529 is an equidigital number, since it uses as much as digits as its factorization.

25650529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884530.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 25650529 is about 5064.6351299970. The cubic root of 25650529 is about 294.9162991494.

The spelling of 25650529 in words is "twenty-five million, six hundred fifty thousand, five hundred twenty-nine".