2557577553 has 4 divisors (see below), whose sum is σ = 3410103408. Its totient is φ = 1705051700.

The previous prime is 2557577537. The next prime is 2557577567. The reversal of 2557577553 is 3557757552.

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 a cyclic number.

It is not a de Polignac number, because 2557577553 - 2⁴ = 2557577537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2557577496 and 2557577505.

It is not an unprimeable number, because it can be changed into a prime (2557577573) 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, 426262923 + ... + 426262928.

It is an arithmetic number, because the mean of its divisors is an integer number (852525852).

Almost surely, 2^2557577553 is an apocalyptic number.

It is an amenable number.

2557577553 is a deficient number, since it is larger than the sum of its proper divisors (852525855).

2557577553 is an equidigital number, since it uses as much as digits as its factorization.

2557577553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852525854.

The product of its digits is 6431250, while the sum is 51.

The square root of 2557577553 is about 50572.4979905086. The cubic root of 2557577553 is about 1367.5491288650.

The spelling of 2557577553 in words is "two billion, five hundred fifty-seven million, five hundred seventy-seven thousand, five hundred fifty-three".