5562721261 has 2 divisors, whose sum is σ = 5562721262. Its totient is φ = 5562721260.

The previous prime is 5562721223. The next prime is 5562721279. The reversal of 5562721261 is 1621272655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5145336361 + 417384900 = 71731^2 + 20430^2 .

It is a cyclic number.

It is not a de Polignac number, because 5562721261 - 2⁷ = 5562721133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5562721261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5562721291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2781360630 + 2781360631.

It is an arithmetic number, because the mean of its divisors is an integer number (2781360631).

Almost surely, 2^5562721261 is an apocalyptic number.

It is an amenable number.

5562721261 is a deficient number, since it is larger than the sum of its proper divisors (1).

5562721261 is an equidigital number, since it uses as much as digits as its factorization.

5562721261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 5562721261 is about 74583.6527732452. The cubic root of 5562721261 is about 1771.8587579801.

The spelling of 5562721261 in words is "five billion, five hundred sixty-two million, seven hundred twenty-one thousand, two hundred sixty-one".