25630617 has 8 divisors (see below), whose sum is σ = 35007840. Its totient is φ = 16670240.

The previous prime is 25630607. The next prime is 25630621. The reversal of 25630617 is 71603652.

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

It is a cyclic number.

It is not a de Polignac number, because 25630617 - 2⁷ = 25630489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25630607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104067 + ... + 104312.

It is an arithmetic number, because the mean of its divisors is an integer number (4375980).

Almost surely, 2^25630617 is an apocalyptic number.

It is an amenable number.

25630617 is a deficient number, since it is larger than the sum of its proper divisors (9377223).

25630617 is a wasteful number, since it uses less digits than its factorization.

25630617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208423.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 25630617 is about 5062.6689601435. The cubic root of 25630617 is about 294.8399668245.

The spelling of 25630617 in words is "twenty-five million, six hundred thirty thousand, six hundred seventeen".