2750505491 has 2 divisors, whose sum is σ = 2750505492. Its totient is φ = 2750505490.

The previous prime is 2750505431. The next prime is 2750505509. The reversal of 2750505491 is 1945050572.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2750505491 - 2¹⁴ = 2750489107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2750505431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375252745 + 1375252746.

It is an arithmetic number, because the mean of its divisors is an integer number (1375252746).

Almost surely, 2^2750505491 is an apocalyptic number.

2750505491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750505491 is an equidigital number, since it uses as much as digits as its factorization.

2750505491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 2750505491 is about 52445.2618546232. The cubic root of 2750505491 is about 1401.1055028360.

The spelling of 2750505491 in words is "two billion, seven hundred fifty million, five hundred five thousand, four hundred ninety-one".