2566353543 has 16 divisors (see below), whose sum is σ = 3702496896. Its totient is φ = 1571804640.

The previous prime is 2566353533. The next prime is 2566353553. The reversal of 2566353543 is 3453536652.

It is an interprime number because it is at equal distance from previous prime (2566353533) and next prime (2566353553).

It is not a de Polignac number, because 2566353543 - 2⁵ = 2566353511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2566353495 and 2566353504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566353533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147705 + ... + 164162.

It is an arithmetic number, because the mean of its divisors is an integer number (231406056).

Almost surely, 2^2566353543 is an apocalyptic number.

2566353543 is a deficient number, since it is larger than the sum of its proper divisors (1136143353).

2566353543 is a wasteful number, since it uses less digits than its factorization.

2566353543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312094.

The product of its digits is 972000, while the sum is 42.

The square root of 2566353543 is about 50659.1901139369. The cubic root of 2566353543 is about 1369.1115313129. Note that the first 3 decimals are identical.

The spelling of 2566353543 in words is "two billion, five hundred sixty-six million, three hundred fifty-three thousand, five hundred forty-three".