2557503057 has 4 divisors (see below), whose sum is σ = 3410004080. Its totient is φ = 1705002036.

The previous prime is 2557502993. The next prime is 2557503121. The reversal of 2557503057 is 7503057552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2557502993) and next prime (2557503121).

It is not a de Polignac number, because 2557503057 - 2⁶ = 2557502993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557503457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426250507 + ... + 426250512.

It is an arithmetic number, because the mean of its divisors is an integer number (852501020).

Almost surely, 2^2557503057 is an apocalyptic number.

It is an amenable number.

2557503057 is a deficient number, since it is larger than the sum of its proper divisors (852501023).

2557503057 is an equidigital number, since it uses as much as digits as its factorization.

2557503057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852501022.

The product of its (nonzero) digits is 183750, while the sum is 39.

The square root of 2557503057 is about 50571.7614583475. The cubic root of 2557503057 is about 1367.5358509451.

The spelling of 2557503057 in words is "two billion, five hundred fifty-seven million, five hundred three thousand, fifty-seven".