2005906537 has 2 divisors, whose sum is σ = 2005906538. Its totient is φ = 2005906536.

The previous prime is 2005906531. The next prime is 2005906579. The reversal of 2005906537 is 7356095002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1195707241 + 810199296 = 34579^2 + 28464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005906537 - 2¹¹ = 2005904489 is a prime.

It is a super-2 number, since 2×2005906537² = 8047322070358664738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2005906496 and 2005906505.

It is not a weakly prime, because it can be changed into another prime (2005906531) 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, 1002953268 + 1002953269.

It is an arithmetic number, because the mean of its divisors is an integer number (1002953269).

Almost surely, 2^2005906537 is an apocalyptic number.

It is an amenable number.

2005906537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2005906537 is an equidigital number, since it uses as much as digits as its factorization.

2005906537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 2005906537 is about 44787.3479567612. The cubic root of 2005906537 is about 1261.1601259691.

The spelling of 2005906537 in words is "two billion, five million, nine hundred six thousand, five hundred thirty-seven".