2055571945 has 16 divisors (see below), whose sum is σ = 2821034880. Its totient is φ = 1408552704.

The previous prime is 2055571937. The next prime is 2055572009. The reversal of 2055571945 is 5491755502.

It is a cyclic number.

It is not a de Polignac number, because 2055571945 - 2³ = 2055571937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32394 + ... + 71836.

It is an arithmetic number, because the mean of its divisors is an integer number (176314680).

Almost surely, 2^2055571945 is an apocalyptic number.

It is an amenable number.

2055571945 is a deficient number, since it is larger than the sum of its proper divisors (765462935).

2055571945 is a wasteful number, since it uses less digits than its factorization.

2055571945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40944.

The product of its (nonzero) digits is 315000, while the sum is 43.

The square root of 2055571945 is about 45338.4157751459. The cubic root of 2055571945 is about 1271.4839835746.

The spelling of 2055571945 in words is "two billion, fifty-five million, five hundred seventy-one thousand, nine hundred forty-five".