2056265381 has 2 divisors, whose sum is σ = 2056265382. Its totient is φ = 2056265380.

The previous prime is 2056265347. The next prime is 2056265423. The reversal of 2056265381 is 1835626502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189905025 + 866360356 = 34495^2 + 29434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2056265381 is a prime.

It is a super-2 number, since 2×2056265381² = 8456454634198150322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2056265881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028132690 + 1028132691.

It is an arithmetic number, because the mean of its divisors is an integer number (1028132691).

Almost surely, 2^2056265381 is an apocalyptic number.

It is an amenable number.

2056265381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056265381 is an equidigital number, since it uses as much as digits as its factorization.

2056265381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2056265381 is about 45346.0624641214. The cubic root of 2056265381 is about 1271.6269435658.

The spelling of 2056265381 in words is "two billion, fifty-six million, two hundred sixty-five thousand, three hundred eighty-one".