2057312447 has 2 divisors, whose sum is σ = 2057312448. Its totient is φ = 2057312446.

The previous prime is 2057312407. The next prime is 2057312539. The reversal of 2057312447 is 7442137502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057312447 - 2¹⁴ = 2057296063 is a prime.

It is a super-2 number, since 2×2057312447² = 8465069009162255618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057312407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028656223 + 1028656224.

It is an arithmetic number, because the mean of its divisors is an integer number (1028656224).

Almost surely, 2^2057312447 is an apocalyptic number.

2057312447 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057312447 is an equidigital number, since it uses as much as digits as its factorization.

2057312447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 2057312447 is about 45357.6062750229. The cubic root of 2057312447 is about 1271.8427476499.

Adding to 2057312447 its reverse (7442137502), we get a palindrome (9499449949).

The spelling of 2057312447 in words is "two billion, fifty-seven million, three hundred twelve thousand, four hundred forty-seven".