2556526455 has 88 divisors (see below), whose sum is σ = 5263361952. Its totient is φ = 1167753024.

The previous prime is 2556526451. The next prime is 2556526499. The reversal of 2556526455 is 5546256552.

2556526455 is a `hidden beast` number, since 2 + 556 + 52 + 6 + 45 + 5 = 666.

It is not a de Polignac number, because 2556526455 - 2² = 2556526451 is a prime.

It is a super-2 number, since 2×2556526455² = 13071655030229734050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2556526455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556526451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 2066097 + ... + 2067333.

Almost surely, 2^2556526455 is an apocalyptic number.

2556526455 is an abundant number, since it is smaller than the sum of its proper divisors (2706835497).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2556526455 is an frugal number, since it uses more digits than its factorization.

2556526455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1252 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The square root of 2556526455 is about 50562.1049304714. The cubic root of 2556526455 is about 1367.3617607944.

The spelling of 2556526455 in words is "two billion, five hundred fifty-six million, five hundred twenty-six thousand, four hundred fifty-five".