2057452477 has 4 divisors (see below), whose sum is σ = 2057608060. Its totient is φ = 2057296896.

The previous prime is 2057452471. The next prime is 2057452483. The reversal of 2057452477 is 7742547502.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2057452471) and next prime (2057452483).

It can be written as a sum of positive squares in 2 ways, for example, as 484616196 + 1572836281 = 22014^2 + 39659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057452477 - 2¹⁹ = 2056928189 is a prime.

It is a super-2 number, since 2×2057452477² = 8466221390226871058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057452471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55902 + ... + 85087.

It is an arithmetic number, because the mean of its divisors is an integer number (514402015).

Almost surely, 2^2057452477 is an apocalyptic number.

It is an amenable number.

2057452477 is a deficient number, since it is larger than the sum of its proper divisors (155583).

2057452477 is a wasteful number, since it uses less digits than its factorization.

2057452477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155582.

The product of its (nonzero) digits is 548800, while the sum is 43.

The square root of 2057452477 is about 45359.1498707813. The cubic root of 2057452477 is about 1271.8716027872.

Adding to 2057452477 its reverse (7742547502), we get a palindrome (9799999979).

The spelling of 2057452477 in words is "two billion, fifty-seven million, four hundred fifty-two thousand, four hundred seventy-seven".