2073263521 has 4 divisors (see below), whose sum is σ = 2369444032. Its totient is φ = 1777083012.

The previous prime is 2073263519. The next prime is 2073263551. The reversal of 2073263521 is 1253623702.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1253623702 = 2 ⋅626811851.

It is a cyclic number.

It is not a de Polignac number, because 2073263521 - 2¹ = 2073263519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2073263551) 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, 148090245 + ... + 148090258.

It is an arithmetic number, because the mean of its divisors is an integer number (592361008).

Almost surely, 2^2073263521 is an apocalyptic number.

It is an amenable number.

2073263521 is a deficient number, since it is larger than the sum of its proper divisors (296180511).

2073263521 is an equidigital number, since it uses as much as digits as its factorization.

2073263521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296180510.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 2073263521 is about 45533.1035731148. The cubic root of 2073263521 is about 1275.1213050803.

The spelling of 2073263521 in words is "two billion, seventy-three million, two hundred sixty-three thousand, five hundred twenty-one".