2665025447 has 16 divisors (see below), whose sum is σ = 3110469120. Its totient is φ = 2235965472.

The previous prime is 2665025423. The next prime is 2665025471. The reversal of 2665025447 is 7445205662.

It is an interprime number because it is at equal distance from previous prime (2665025423) and next prime (2665025471).

It is a cyclic number.

It is not a de Polignac number, because 2665025447 - 2⁸ = 2665025191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665025047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154688 + ... + 171050.

It is an arithmetic number, because the mean of its divisors is an integer number (194404320).

Almost surely, 2^2665025447 is an apocalyptic number.

2665025447 is a deficient number, since it is larger than the sum of its proper divisors (445443673).

2665025447 is a wasteful number, since it uses less digits than its factorization.

2665025447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16862.

The product of its (nonzero) digits is 403200, while the sum is 41.

The square root of 2665025447 is about 51623.8844625237. The cubic root of 2665025447 is about 1386.4380007777.

The spelling of 2665025447 in words is "two billion, six hundred sixty-five million, twenty-five thousand, four hundred forty-seven".