2605555741 has 2 divisors, whose sum is σ = 2605555742. Its totient is φ = 2605555740.

The previous prime is 2605555691. The next prime is 2605555751. The reversal of 2605555741 is 1475555062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2531096100 + 74459641 = 50310^2 + 8629^2 .

It is a cyclic number.

It is not a de Polignac number, because 2605555741 - 2⁷ = 2605555613 is a prime.

It is a super-3 number, since 3×2605555741³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2605555694 and 2605555703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2605555751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302777870 + 1302777871.

It is an arithmetic number, because the mean of its divisors is an integer number (1302777871).

Almost surely, 2^2605555741 is an apocalyptic number.

It is an amenable number.

2605555741 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605555741 is an equidigital number, since it uses as much as digits as its factorization.

2605555741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210000, while the sum is 40.

The square root of 2605555741 is about 51044.6445868712. The cubic root of 2605555741 is about 1376.0475967528.

It can be divided in two parts, 26055 and 55741, that added together give a square (81796 = 286²).

The spelling of 2605555741 in words is "two billion, six hundred five million, five hundred fifty-five thousand, seven hundred forty-one".