2055453989 has 2 divisors, whose sum is σ = 2055453990. Its totient is φ = 2055453988.

The previous prime is 2055453947. The next prime is 2055454033. The reversal of 2055453989 is 9893545502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1860628225 + 194825764 = 43135^2 + 13958^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055453989 - 2⁸ = 2055453733 is a prime.

It is a super-2 number, since 2×2055453989² = 8449782201792024242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055456989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027726994 + 1027726995.

It is an arithmetic number, because the mean of its divisors is an integer number (1027726995).

Almost surely, 2^2055453989 is an apocalyptic number.

It is an amenable number.

2055453989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055453989 is an equidigital number, since it uses as much as digits as its factorization.

2055453989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The square root of 2055453989 is about 45337.1149170302. The cubic root of 2055453989 is about 1271.4596623576.

The spelling of 2055453989 in words is "two billion, fifty-five million, four hundred fifty-three thousand, nine hundred eighty-nine".