73213025 has 24 divisors (see below), whose sum is σ = 95452224. Its totient is φ = 55598400.

The previous prime is 73213009. The next prime is 73213031. The reversal of 73213025 is 52031237.

It is not a de Polignac number, because 73213025 - 2⁴ = 73213009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89870 + ... + 90680.

It is an arithmetic number, because the mean of its divisors is an integer number (3977176).

Almost surely, 2^73213025 is an apocalyptic number.

It is an amenable number.

73213025 is a deficient number, since it is larger than the sum of its proper divisors (22239199).

73213025 is a wasteful number, since it uses less digits than its factorization.

73213025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 73213025 is about 8556.4610090855. The cubic root of 73213025 is about 418.3400562226.

The spelling of 73213025 in words is "seventy-three million, two hundred thirteen thousand, twenty-five".