2081554733 has 2 divisors, whose sum is σ = 2081554734. Its totient is φ = 2081554732.

The previous prime is 2081554703. The next prime is 2081554757. The reversal of 2081554733 is 3374551802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2057711044 + 23843689 = 45362^2 + 4883^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081554733 - 2⁶ = 2081554669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081554703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040777366 + 1040777367.

It is an arithmetic number, because the mean of its divisors is an integer number (1040777367).

Almost surely, 2^2081554733 is an apocalyptic number.

It is an amenable number.

2081554733 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081554733 is an equidigital number, since it uses as much as digits as its factorization.

2081554733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 2081554733 is about 45624.0587080983. The cubic root of 2081554733 is about 1276.8188283196.

The spelling of 2081554733 in words is "two billion, eighty-one million, five hundred fifty-four thousand, seven hundred thirty-three".