72250093 has 2 divisors, whose sum is σ = 72250094. Its totient is φ = 72250092.

The previous prime is 72250081. The next prime is 72250121. The reversal of 72250093 is 39005227.

It is an a-pointer prime, because the next prime (72250121) can be obtained adding 72250093 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42797764 + 29452329 = 6542^2 + 5427^2 .

It is a cyclic number.

It is not a de Polignac number, because 72250093 - 2⁹ = 72249581 is a prime.

It is equal to p_4242619 and since 72250093 and 4242619 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72250033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36125046 + 36125047.

It is an arithmetic number, because the mean of its divisors is an integer number (36125047).

Almost surely, 2^72250093 is an apocalyptic number.

It is an amenable number.

72250093 is a deficient number, since it is larger than the sum of its proper divisors (1).

72250093 is an equidigital number, since it uses as much as digits as its factorization.

72250093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 72250093 is about 8500.0054705865. The cubic root of 72250093 is about 416.4978879800.

The spelling of 72250093 in words is "seventy-two million, two hundred fifty thousand, ninety-three".