2534542021 has 4 divisors (see below), whose sum is σ = 2764954944. Its totient is φ = 2304129100.

The previous prime is 2534542013. The next prime is 2534542037. The reversal of 2534542021 is 1202454352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2534542021 - 2³ = 2534542013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2534542061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115206445 + ... + 115206466.

It is an arithmetic number, because the mean of its divisors is an integer number (691238736).

Almost surely, 2^2534542021 is an apocalyptic number.

It is an amenable number.

2534542021 is a deficient number, since it is larger than the sum of its proper divisors (230412923).

2534542021 is a wasteful number, since it uses less digits than its factorization.

2534542021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230412922.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2534542021 is about 50344.2352310570. The cubic root of 2534542021 is about 1363.4310034117.

Adding to 2534542021 its reverse (1202454352), we get a palindrome (3736996373).

The spelling of 2534542021 in words is "two billion, five hundred thirty-four million, five hundred forty-two thousand, twenty-one".