2666052523 has 4 divisors (see below), whose sum is σ = 2822879160. Its totient is φ = 2509225888.

The previous prime is 2666052517. The next prime is 2666052533. The reversal of 2666052523 is 3252506662.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2666052523 - 2¹³ = 2666044331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2666052533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78413293 + ... + 78413326.

It is an arithmetic number, because the mean of its divisors is an integer number (705719790).

Almost surely, 2^2666052523 is an apocalyptic number.

2666052523 is a deficient number, since it is larger than the sum of its proper divisors (156826637).

2666052523 is a wasteful number, since it uses less digits than its factorization.

2666052523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156826636.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 2666052523 is about 51633.8311865389. The cubic root of 2666052523 is about 1386.6160846690.

The spelling of 2666052523 in words is "two billion, six hundred sixty-six million, fifty-two thousand, five hundred twenty-three".