2556435253 has 8 divisors (see below), whose sum is σ = 2592476928. Its totient is φ = 2520421344.

The previous prime is 2556435247. The next prime is 2556435281. The reversal of 2556435253 is 3525346552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2556435253 - 2⁵ = 2556435221 is a prime.

It is a super-2 number, since 2×2556435253² = 13070722405562348018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556435223) 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 7 ways as a sum of consecutive naturals, for example, 239100 + ... + 249562.

It is an arithmetic number, because the mean of its divisors is an integer number (324059616).

Almost surely, 2^2556435253 is an apocalyptic number.

It is an amenable number.

2556435253 is a deficient number, since it is larger than the sum of its proper divisors (36041675).

2556435253 is a wasteful number, since it uses less digits than its factorization.

2556435253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883.

The product of its digits is 540000, while the sum is 40.

The square root of 2556435253 is about 50561.2030414625. The cubic root of 2556435253 is about 1367.3455007618.

The spelling of 2556435253 in words is "two billion, five hundred fifty-six million, four hundred thirty-five thousand, two hundred fifty-three".