2905085531 has 2 divisors, whose sum is σ = 2905085532. Its totient is φ = 2905085530.

The previous prime is 2905085507. The next prime is 2905085543. The reversal of 2905085531 is 1355805092.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2905085531 is a prime.

It is a super-2 number, since 2×2905085531² = 16879043884851103922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2905085501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452542765 + 1452542766.

It is an arithmetic number, because the mean of its divisors is an integer number (1452542766).

Almost surely, 2^2905085531 is an apocalyptic number.

2905085531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2905085531 is an equidigital number, since it uses as much as digits as its factorization.

2905085531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 38.

The square root of 2905085531 is about 53898.8453586902. The cubic root of 2905085531 is about 1426.8762450202.

The spelling of 2905085531 in words is "two billion, nine hundred five million, eighty-five thousand, five hundred thirty-one".