2557530163 has 4 divisors (see below), whose sum is σ = 2640031168. Its totient is φ = 2475029160.

The previous prime is 2557530139. The next prime is 2557530179. The reversal of 2557530163 is 3610357552.

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

It is a cyclic number.

It is not a de Polignac number, because 2557530163 - 2¹³ = 2557521971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557230163) 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, 41250456 + ... + 41250517.

It is an arithmetic number, because the mean of its divisors is an integer number (660007792).

Almost surely, 2^2557530163 is an apocalyptic number.

2557530163 is a deficient number, since it is larger than the sum of its proper divisors (82501005).

2557530163 is an equidigital number, since it uses as much as digits as its factorization.

2557530163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82501004.

The product of its (nonzero) digits is 94500, while the sum is 37.

The square root of 2557530163 is about 50572.0294530485. The cubic root of 2557530163 is about 1367.5406822585.

The spelling of 2557530163 in words is "two billion, five hundred fifty-seven million, five hundred thirty thousand, one hundred sixty-three".