2055981357 has 6 divisors (see below), whose sum is σ = 2969750862. Its totient is φ = 1370654232.

The previous prime is 2055981341. The next prime is 2055981371. The reversal of 2055981357 is 7531895502.

2055981357 is a `hidden beast` number, since 2 + 0 + 5 + 598 + 1 + 3 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1829358441 + 226622916 = 42771^2 + 15054^2 .

It is not a de Polignac number, because 2055981357 - 2⁴ = 2055981341 is a prime.

It is a super-2 number, since 2×2055981357² = 8454118680663122898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055981307) 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 in 5 ways as a sum of consecutive naturals, for example, 114221178 + ... + 114221195.

It is an arithmetic number, because the mean of its divisors is an integer number (494958477).

Almost surely, 2^2055981357 is an apocalyptic number.

It is an amenable number.

2055981357 is a deficient number, since it is larger than the sum of its proper divisors (913769505).

2055981357 is a wasteful number, since it uses less digits than its factorization.

2055981357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228442379 (or 228442376 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 45.

The square root of 2055981357 is about 45342.9306176828. The cubic root of 2055981357 is about 1271.5683925628.

The spelling of 2055981357 in words is "two billion, fifty-five million, nine hundred eighty-one thousand, three hundred fifty-seven".