2521741273 has 4 divisors (see below), whose sum is σ = 2556285748. Its totient is φ = 2487196800.

The previous prime is 2521741267. The next prime is 2521741297. The reversal of 2521741273 is 3721471252.

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 1896341209 + 625400064 = 43547^2 + 25008^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521741273 - 2²⁹ = 1984870361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521741973) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 17272128 + ... + 17272273.

It is an arithmetic number, because the mean of its divisors is an integer number (639071437).

Almost surely, 2^2521741273 is an apocalyptic number.

It is an amenable number.

2521741273 is a deficient number, since it is larger than the sum of its proper divisors (34544475).

2521741273 is an equidigital number, since it uses as much as digits as its factorization.

2521741273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34544474.

The product of its digits is 23520, while the sum is 34.

The square root of 2521741273 is about 50216.9420912903. The cubic root of 2521741273 is about 1361.1317844095.

The spelling of 2521741273 in words is "two billion, five hundred twenty-one million, seven hundred forty-one thousand, two hundred seventy-three".