2705531 has 2 divisors, whose sum is σ = 2705532. Its totient is φ = 2705530.

The previous prime is 2705519. The next prime is 2705537. The reversal of 2705531 is 1355072.

2705531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2705531 - 2¹⁸ = 2443387 is a prime.

It is a super-2 number, since 2×2705531² = 14639795983922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2705497 and 2705506.

It is not a weakly prime, because it can be changed into another prime (2705537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352765 + 1352766.

It is an arithmetic number, because the mean of its divisors is an integer number (1352766).

2^2705531 is an apocalyptic number.

2705531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705531 is an equidigital number, since it uses as much as digits as its factorization.

2705531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 2705531 is about 1644.8498411709. The cubic root of 2705531 is about 139.3426839620.

The spelling of 2705531 in words is "two million, seven hundred five thousand, five hundred thirty-one".