2666025505 has 32 divisors (see below), whose sum is σ = 3811546368. Its totient is φ = 1764537600.

The previous prime is 2666025469. The next prime is 2666025511. The reversal of 2666025505 is 5055206662.

It is not a de Polignac number, because 2666025505 - 2¹⁷ = 2665894433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24507 + ... + 77023.

It is an arithmetic number, because the mean of its divisors is an integer number (119110824).

Almost surely, 2^2666025505 is an apocalyptic number.

It is an amenable number.

2666025505 is a deficient number, since it is larger than the sum of its proper divisors (1145520863).

2666025505 is a wasteful number, since it uses less digits than its factorization.

2666025505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52617.

The product of its (nonzero) digits is 108000, while the sum is 37.

The square root of 2666025505 is about 51633.5695550869. The cubic root of 2666025505 is about 1386.6114006252.

The spelling of 2666025505 in words is "two billion, six hundred sixty-six million, twenty-five thousand, five hundred five".