73024521 has 4 divisors (see below), whose sum is σ = 97366032. Its totient is φ = 48683012.

The previous prime is 73024493. The next prime is 73024529. The reversal of 73024521 is 12542037.

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: 12542037 = 3 ⋅4180679.

It is a cyclic number.

It is not a de Polignac number, because 73024521 - 2⁹ = 73024009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73024491 and 73024500.

It is not an unprimeable number, because it can be changed into a prime (73024529) 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, 12170751 + ... + 12170756.

It is an arithmetic number, because the mean of its divisors is an integer number (24341508).

Almost surely, 2^73024521 is an apocalyptic number.

It is an amenable number.

73024521 is a deficient number, since it is larger than the sum of its proper divisors (24341511).

73024521 is a wasteful number, since it uses less digits than its factorization.

73024521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24341510.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 73024521 is about 8545.4386078188. The cubic root of 73024521 is about 417.9807096399.

Adding to 73024521 its reverse (12542037), we get a palindrome (85566558).

The spelling of 73024521 in words is "seventy-three million, twenty-four thousand, five hundred twenty-one".