25720633 has 8 divisors (see below), whose sum is σ = 25998336. Its totient is φ = 25444800.

The previous prime is 25720631. The next prime is 25720649. The reversal of 25720633 is 33602752.

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 25720633 - 2¹ = 25720631 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25720631) 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, 59185 + ... + 59617.

It is an arithmetic number, because the mean of its divisors is an integer number (3249792).

Almost surely, 2^25720633 is an apocalyptic number.

It is an amenable number.

25720633 is a deficient number, since it is larger than the sum of its proper divisors (277703).

25720633 is a wasteful number, since it uses less digits than its factorization.

25720633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 25720633 is about 5071.5513405663. The cubic root of 25720633 is about 295.1847277359.

The spelling of 25720633 in words is "twenty-five million, seven hundred twenty thousand, six hundred thirty-three".