6211560449 has 2 divisors, whose sum is σ = 6211560450. Its totient is φ = 6211560448.

The previous prime is 6211560401. The next prime is 6211560451. The reversal of 6211560449 is 9440651126.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6182991424 + 28569025 = 78632^2 + 5345^2 .

It is a cyclic number.

It is not a de Polignac number, because 6211560449 - 2²⁰ = 6210511873 is a prime.

Together with 6211560451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6211560149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105780224 + 3105780225.

It is an arithmetic number, because the mean of its divisors is an integer number (3105780225).

Almost surely, 2^6211560449 is an apocalyptic number.

It is an amenable number.

6211560449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6211560449 is an equidigital number, since it uses as much as digits as its factorization.

6211560449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 6211560449 is about 78813.4534771824. The cubic root of 6211560449 is about 1838.2316470830.

The spelling of 6211560449 in words is "six billion, two hundred eleven million, five hundred sixty thousand, four hundred forty-nine".