73225891 has 2 divisors, whose sum is σ = 73225892. Its totient is φ = 73225890.

The previous prime is 73225853. The next prime is 73225897. The reversal of 73225891 is 19852237.

It is a strong prime.

It is an emirp because it is prime and its reverse (19852237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73225891 - 2¹³ = 73217699 is a prime.

It is a super-2 number, since 2×73225891² = 10724062225487762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73225891.

It is not a weakly prime, because it can be changed into another prime (73225897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36612945 + 36612946.

It is an arithmetic number, because the mean of its divisors is an integer number (36612946).

Almost surely, 2^73225891 is an apocalyptic number.

73225891 is a deficient number, since it is larger than the sum of its proper divisors (1).

73225891 is an equidigital number, since it uses as much as digits as its factorization.

73225891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 73225891 is about 8557.2128055810. The cubic root of 73225891 is about 418.3645602773.

The spelling of 73225891 in words is "seventy-three million, two hundred twenty-five thousand, eight hundred ninety-one".