2542435321 has 4 divisors (see below), whose sum is σ = 2571002100. Its totient is φ = 2513868544.

The previous prime is 2542435303. The next prime is 2542435331. The reversal of 2542435321 is 1235342452.

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 531809721 + 2010625600 = 23061^2 + 44840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542435321 - 2⁹ = 2542434809 is a prime.

It is a super-2 number, since 2×2542435321² = 12927954722936746082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2542435331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14283256 + ... + 14283433.

It is an arithmetic number, because the mean of its divisors is an integer number (642750525).

Almost surely, 2^2542435321 is an apocalyptic number.

It is an amenable number.

2542435321 is a deficient number, since it is larger than the sum of its proper divisors (28566779).

2542435321 is an equidigital number, since it uses as much as digits as its factorization.

2542435321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28566778.

The product of its digits is 28800, while the sum is 31.

The square root of 2542435321 is about 50422.5675764335. The cubic root of 2542435321 is about 1364.8449100363.

Adding to 2542435321 its reverse (1235342452), we get a palindrome (3777777773).

The spelling of 2542435321 in words is "two billion, five hundred forty-two million, four hundred thirty-five thousand, three hundred twenty-one".