2057291477 has 2 divisors, whose sum is σ = 2057291478. Its totient is φ = 2057291476.

The previous prime is 2057291359. The next prime is 2057291491. The reversal of 2057291477 is 7741927502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1653723556 + 403567921 = 40666^2 + 20089^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057291477 - 2¹⁸ = 2057029333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057291077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028645738 + 1028645739.

It is an arithmetic number, because the mean of its divisors is an integer number (1028645739).

Almost surely, 2^2057291477 is an apocalyptic number.

It is an amenable number.

2057291477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057291477 is an equidigital number, since it uses as much as digits as its factorization.

2057291477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 44.

The square root of 2057291477 is about 45357.3751114414. The cubic root of 2057291477 is about 1271.8384263758.

The spelling of 2057291477 in words is "two billion, fifty-seven million, two hundred ninety-one thousand, four hundred seventy-seven".