2542055321 has 4 divisors (see below), whose sum is σ = 2737598052. Its totient is φ = 2346512592.

The previous prime is 2542055317. The next prime is 2542055357. The reversal of 2542055321 is 1235502452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1394200921 + 1147854400 = 37339^2 + 33880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542055321 - 2² = 2542055317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542055921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97771346 + ... + 97771371.

It is an arithmetic number, because the mean of its divisors is an integer number (684399513).

Almost surely, 2^2542055321 is an apocalyptic number.

It is an amenable number.

2542055321 is a deficient number, since it is larger than the sum of its proper divisors (195542731).

2542055321 is a wasteful number, since it uses less digits than its factorization.

2542055321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195542730.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2542055321 is about 50418.7992816172. The cubic root of 2542055321 is about 1364.7769087119.

Adding to 2542055321 its reverse (1235502452), we get a palindrome (3777557773).

The spelling of 2542055321 in words is "two billion, five hundred forty-two million, fifty-five thousand, three hundred twenty-one".