72025189 has 2 divisors, whose sum is σ = 72025190. Its totient is φ = 72025188.

The previous prime is 72025139. The next prime is 72025207. The reversal of 72025189 is 98152027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 5602689 = 8150^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 72025189 - 2⁹ = 72024677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72025139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36012594 + 36012595.

It is an arithmetic number, because the mean of its divisors is an integer number (36012595).

Almost surely, 2^72025189 is an apocalyptic number.

It is an amenable number.

72025189 is a deficient number, since it is larger than the sum of its proper divisors (1).

72025189 is an equidigital number, since it uses as much as digits as its factorization.

72025189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 72025189 is about 8486.7655205031. The cubic root of 72025189 is about 416.0652730571.

The spelling of 72025189 in words is "seventy-two million, twenty-five thousand, one hundred eighty-nine".