2056646357 has 2 divisors, whose sum is σ = 2056646358. Its totient is φ = 2056646356.

The previous prime is 2056646341. The next prime is 2056646377. The reversal of 2056646357 is 7536466502.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1890597361 + 166048996 = 43481^2 + 12886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056646357 - 2⁴ = 2056646341 is a prime.

It is a super-2 number, since 2×2056646357² = 8459588475522742898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2056646377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028323178 + 1028323179.

It is an arithmetic number, because the mean of its divisors is an integer number (1028323179).

Almost surely, 2^2056646357 is an apocalyptic number.

It is an amenable number.

2056646357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056646357 is an equidigital number, since it uses as much as digits as its factorization.

2056646357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 44.

The square root of 2056646357 is about 45350.2630312107. The cubic root of 2056646357 is about 1271.7054725719.

The spelling of 2056646357 in words is "two billion, fifty-six million, six hundred forty-six thousand, three hundred fifty-seven".