2544533442 has 72 divisors (see below), whose sum is σ = 6072026688. Its totient is φ = 769530960.

The previous prime is 2544533419. The next prime is 2544533461. The reversal of 2544533442 is 2443354452.

It is a junction number, because it is equal to n+sod(n) for n = 2544533397 and 2544533406.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 1582603 + ... + 1584209.

It is an arithmetic number, because the mean of its divisors is an integer number (84333704).

Almost surely, 2^2544533442 is an apocalyptic number.

2544533442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2544533442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3036013344).

2544533442 is an abundant number, since it is smaller than the sum of its proper divisors (3527493246).

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

2544533442 is a wasteful number, since it uses less digits than its factorization.

2544533442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364 (or 2350 counting only the distinct ones).

The product of its digits is 230400, while the sum is 36.

The square root of 2544533442 is about 50443.3686622930. The cubic root of 2544533442 is about 1365.2202486447.

Adding to 2544533442 its reverse (2443354452), we get a palindrome (4987887894).

The spelling of 2544533442 in words is "two billion, five hundred forty-four million, five hundred thirty-three thousand, four hundred forty-two".