25665675 has 96 divisors (see below), whose sum is σ = 53329920. Its totient is φ = 10627200.

The previous prime is 25665671. The next prime is 25665683. The reversal of 25665675 is 57656652.

It is a happy number.

It is not a de Polignac number, because 25665675 - 2² = 25665671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25665671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 309184 + ... + 309266.

It is an arithmetic number, because the mean of its divisors is an integer number (555520).

Almost surely, 2^25665675 is an apocalyptic number.

25665675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25665675 is an abundant number, since it is smaller than the sum of its proper divisors (27664245).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25665675 is a wasteful number, since it uses less digits than its factorization.

25665675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 148 counting only the distinct ones).

The product of its digits is 378000, while the sum is 42.

The square root of 25665675 is about 5066.1301799302. The cubic root of 25665675 is about 294.9743346435.

The spelling of 25665675 in words is "twenty-five million, six hundred sixty-five thousand, six hundred seventy-five".