25050661 has 4 divisors (see below), whose sum is σ = 25120800. Its totient is φ = 24980524.

The previous prime is 25050653. The next prime is 25050667. The reversal of 25050661 is 16605052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25050661 - 2³ = 25050653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25050667) 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, 34531 + ... + 35248.

It is an arithmetic number, because the mean of its divisors is an integer number (6280200).

Almost surely, 2^25050661 is an apocalyptic number.

It is an amenable number.

25050661 is a deficient number, since it is larger than the sum of its proper divisors (70139).

25050661 is an equidigital number, since it uses as much as digits as its factorization.

25050661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70138.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 25050661 is about 5005.0635360603. The cubic root of 25050661 is about 292.5991521064.

The spelling of 25050661 in words is "twenty-five million, fifty thousand, six hundred sixty-one".