2543555454 has 48 divisors (see below), whose sum is σ = 5703820416. Its totient is φ = 749916000.

The previous prime is 2543555401. The next prime is 2543555477. The reversal of 2543555454 is 4545553452.

It is a super-2 number, since 2×2543555454² = 12939348695146292232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76279 + ... + 104429.

It is an arithmetic number, because the mean of its divisors is an integer number (118829592).

Almost surely, 2^2543555454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543555454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2851910208).

2543555454 is an abundant number, since it is smaller than the sum of its proper divisors (3160264962).

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

2543555454 is a wasteful number, since it uses less digits than its factorization.

2543555454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28241 (or 28204 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 42.

The square root of 2543555454 is about 50433.6738102629. The cubic root of 2543555454 is about 1365.0453193771.

The spelling of 2543555454 in words is "two billion, five hundred forty-three million, five hundred fifty-five thousand, four hundred fifty-four".