2667665525 has 24 divisors (see below), whose sum is σ = 3787049280. Its totient is φ = 1826069760.

The previous prime is 2667665513. The next prime is 2667665573. The reversal of 2667665525 is 5255667662.

It is not a de Polignac number, because 2667665525 - 2¹⁴ = 2667649141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89741 + ... + 115709.

It is an arithmetic number, because the mean of its divisors is an integer number (157793720).

Almost surely, 2^2667665525 is an apocalyptic number.

2667665525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2667665525 is a deficient number, since it is larger than the sum of its proper divisors (1119383755).

2667665525 is a wasteful number, since it uses less digits than its factorization.

2667665525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26573 (or 26568 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 50.

The square root of 2667665525 is about 51649.4484481684. The cubic root of 2667665525 is about 1386.8956695094.

The spelling of 2667665525 in words is "two billion, six hundred sixty-seven million, six hundred sixty-five thousand, five hundred twenty-five".