2543403552 has 48 divisors (see below), whose sum is σ = 6751473120. Its totient is φ = 838272512.

The previous prime is 2543403547. The next prime is 2543403557. The reversal of 2543403552 is 2553043452.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2543403547) and next prime (2543403557).

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (2543403557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140298 + ... + 157385.

It is an arithmetic number, because the mean of its divisors is an integer number (140655690).

Almost surely, 2^2543403552 is an apocalyptic number.

It is an amenable number.

2543403552 is an abundant number, since it is smaller than the sum of its proper divisors (4208069568).

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

2543403552 is a wasteful number, since it uses less digits than its factorization.

2543403552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297785 (or 297777 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 33.

The square root of 2543403552 is about 50432.1678296700. The cubic root of 2543403552 is about 1365.0181451787.

The spelling of 2543403552 in words is "two billion, five hundred forty-three million, four hundred three thousand, five hundred fifty-two".