2563441771 has 4 divisors (see below), whose sum is σ = 2796481944. Its totient is φ = 2330401600.

The previous prime is 2563441763. The next prime is 2563441799. The reversal of 2563441771 is 1771443652.

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 2563441771 - 2³ = 2563441763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563441721) 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, 116520070 + ... + 116520091.

It is an arithmetic number, because the mean of its divisors is an integer number (699120486).

Almost surely, 2^2563441771 is an apocalyptic number.

2563441771 is a deficient number, since it is larger than the sum of its proper divisors (233040173).

2563441771 is a wasteful number, since it uses less digits than its factorization.

2563441771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233040172.

The product of its digits is 141120, while the sum is 40.

The square root of 2563441771 is about 50630.4431246656. The cubic root of 2563441771 is about 1368.5935396425.

The spelling of 2563441771 in words is "two billion, five hundred sixty-three million, four hundred forty-one thousand, seven hundred seventy-one".