25005651 has 16 divisors (see below), whose sum is σ = 36643968. Its totient is φ = 15041600.

The previous prime is 25005649. The next prime is 25005671. The reversal of 25005651 is 15650052.

It is a cyclic number.

It is not a de Polignac number, because 25005651 - 2¹ = 25005649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25005611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1756 + ... + 7286.

It is an arithmetic number, because the mean of its divisors is an integer number (2290248).

Almost surely, 2^25005651 is an apocalyptic number.

25005651 is a deficient number, since it is larger than the sum of its proper divisors (11638317).

25005651 is a wasteful number, since it uses less digits than its factorization.

25005651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 25005651 is about 5000.5650680698. The cubic root of 25005651 is about 292.4238036605.

The spelling of 25005651 in words is "twenty-five million, five thousand, six hundred fifty-one".