6261655537 has 2 divisors, whose sum is σ = 6261655538. Its totient is φ = 6261655536.

The previous prime is 6261655483. The next prime is 6261655573. The reversal of 6261655537 is 7355561626.

Together with next prime (6261655573) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5812385121 + 449270416 = 76239^2 + 21196^2 .

It is a cyclic number.

It is not a de Polignac number, because 6261655537 - 2¹⁵ = 6261622769 is a prime.

It is not a weakly prime, because it can be changed into another prime (6261655937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3130827768 + 3130827769.

It is an arithmetic number, because the mean of its divisors is an integer number (3130827769).

Almost surely, 2^6261655537 is an apocalyptic number.

It is an amenable number.

6261655537 is a deficient number, since it is larger than the sum of its proper divisors (1).

6261655537 is an equidigital number, since it uses as much as digits as its factorization.

6261655537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134000, while the sum is 46.

The square root of 6261655537 is about 79130.6232567392. The cubic root of 6261655537 is about 1843.1600880061.

The spelling of 6261655537 in words is "six billion, two hundred sixty-one million, six hundred fifty-five thousand, five hundred thirty-seven".