25648802 has 8 divisors (see below), whose sum is σ = 38509776. Its totient is φ = 12812212.

The previous prime is 25648781. The next prime is 25648867. The reversal of 25648802 is 20884652.

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

It is a super-2 number, since 2×25648802² = 1315722088070408, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3188 + ... + 7839.

It is an arithmetic number, because the mean of its divisors is an integer number (4813722).

Almost surely, 2^25648802 is an apocalyptic number.

25648802 is a deficient number, since it is larger than the sum of its proper divisors (12860974).

25648802 is a wasteful number, since it uses less digits than its factorization.

25648802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12192.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 25648802 is about 5064.4646311333. The cubic root of 25648802 is about 294.9096802881.

The spelling of 25648802 in words is "twenty-five million, six hundred forty-eight thousand, eight hundred two".