2557523363 has 4 divisors (see below), whose sum is σ = 2564380368. Its totient is φ = 2550666360.

The previous prime is 2557523359. The next prime is 2557523383. The reversal of 2557523363 is 3633257552.

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 2557523363 - 2² = 2557523359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2557523363.

It is not an unprimeable number, because it can be changed into a prime (2557523323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3427943 + ... + 3428688.

It is an arithmetic number, because the mean of its divisors is an integer number (641095092).

Almost surely, 2^2557523363 is an apocalyptic number.

2557523363 is a deficient number, since it is larger than the sum of its proper divisors (6857005).

2557523363 is an equidigital number, since it uses as much as digits as its factorization.

2557523363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6857004.

The product of its digits is 567000, while the sum is 41.

The square root of 2557523363 is about 50571.9622221642. The cubic root of 2557523363 is about 1367.5394702448.

The spelling of 2557523363 in words is "two billion, five hundred fifty-seven million, five hundred twenty-three thousand, three hundred sixty-three".