2055189931 has 2 divisors, whose sum is σ = 2055189932. Its totient is φ = 2055189930.

The previous prime is 2055189911. The next prime is 2055189937. The reversal of 2055189931 is 1399815502.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2055189931 - 2⁷ = 2055189803 is a prime.

It is a super-2 number, since 2×2055189931² = 8447611304967569522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2055189937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027594965 + 1027594966.

It is an arithmetic number, because the mean of its divisors is an integer number (1027594966).

Almost surely, 2^2055189931 is an apocalyptic number.

2055189931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055189931 is an equidigital number, since it uses as much as digits as its factorization.

2055189931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 2055189931 is about 45334.2026620079. The cubic root of 2055189931 is about 1271.4052131580.

The spelling of 2055189931 in words is "two billion, fifty-five million, one hundred eighty-nine thousand, nine hundred thirty-one".