2057700445 has 4 divisors (see below), whose sum is σ = 2469240540. Its totient is φ = 1646160352.

The previous prime is 2057700413. The next prime is 2057700473. The reversal of 2057700445 is 5440077502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 396567396 + 1661133049 = 19914^2 + 40757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2057700445 - 2⁵ = 2057700413 is a prime.

It is a super-2 number, since 2×2057700445² = 8468262242706396050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2057700445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205770040 + ... + 205770049.

It is an arithmetic number, because the mean of its divisors is an integer number (617310135).

Almost surely, 2^2057700445 is an apocalyptic number.

It is an amenable number.

2057700445 is a deficient number, since it is larger than the sum of its proper divisors (411540095).

2057700445 is an equidigital number, since it uses as much as digits as its factorization.

2057700445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411540094.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 2057700445 is about 45361.8831729901. The cubic root of 2057700445 is about 1271.9226968451.

Adding to 2057700445 its reverse (5440077502), we get a palindrome (7497777947).

The spelling of 2057700445 in words is "two billion, fifty-seven million, seven hundred thousand, four hundred forty-five".