2541564349 has 2 divisors, whose sum is σ = 2541564350. Its totient is φ = 2541564348.

The previous prime is 2541564323. The next prime is 2541564391. The reversal of 2541564349 is 9434651452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2087576100 + 453988249 = 45690^2 + 21307^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2541564349 is a prime.

It is a super-3 number, since 3×2541564349³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541564049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270782174 + 1270782175.

It is an arithmetic number, because the mean of its divisors is an integer number (1270782175).

Almost surely, 2^2541564349 is an apocalyptic number.

It is an amenable number.

2541564349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541564349 is an equidigital number, since it uses as much as digits as its factorization.

2541564349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 43.

The square root of 2541564349 is about 50413.9301086515. The cubic root of 2541564349 is about 1364.6890388183.

The spelling of 2541564349 in words is "two billion, five hundred forty-one million, five hundred sixty-four thousand, three hundred forty-nine".