2569734563 has 4 divisors (see below), whose sum is σ = 2803346808. Its totient is φ = 2336122320.

The previous prime is 2569734533. The next prime is 2569734571. The reversal of 2569734563 is 3654379652.

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 2569734563 - 2⁶ = 2569734499 is a prime.

It is a super-3 number, since 3×2569734563³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2569734523) 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, 116806106 + ... + 116806127.

It is an arithmetic number, because the mean of its divisors is an integer number (700836702).

Almost surely, 2^2569734563 is an apocalyptic number.

2569734563 is a deficient number, since it is larger than the sum of its proper divisors (233612245).

2569734563 is a wasteful number, since it uses less digits than its factorization.

2569734563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233612244.

The product of its digits is 4082400, while the sum is 50.

The square root of 2569734563 is about 50692.5493835139. The cubic root of 2569734563 is about 1369.7125088048.

The spelling of 2569734563 in words is "two billion, five hundred sixty-nine million, seven hundred thirty-four thousand, five hundred sixty-three".