2543021952 has 64 divisors (see below), whose sum is σ = 6772930560. Its totient is φ = 845411840.

The previous prime is 2543021893. The next prime is 2543021963. The reversal of 2543021952 is 2591203452.

2543021952 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138427 + ... + 155717.

It is an arithmetic number, because the mean of its divisors is an integer number (105827040).

Almost surely, 2^2543021952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2543021952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386465280).

2543021952 is an abundant number, since it is smaller than the sum of its proper divisors (4229908608).

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

2543021952 is a wasteful number, since it uses less digits than its factorization.

2543021952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17691 (or 17679 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2543021952 is about 50428.3843881598. The cubic root of 2543021952 is about 1364.9498748516.

The spelling of 2543021952 in words is "two billion, five hundred forty-three million, twenty-one thousand, nine hundred fifty-two".