252541789 has 2 divisors, whose sum is σ = 252541790. Its totient is φ = 252541788.

The previous prime is 252541753. The next prime is 252541811. The reversal of 252541789 is 987145252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224100900 + 28440889 = 14970^2 + 5333^2 .

It is a cyclic number.

It is not a de Polignac number, because 252541789 - 2⁹ = 252541277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252541189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126270894 + 126270895.

It is an arithmetic number, because the mean of its divisors is an integer number (126270895).

Almost surely, 2^252541789 is an apocalyptic number.

It is an amenable number.

252541789 is a deficient number, since it is larger than the sum of its proper divisors (1).

252541789 is an equidigital number, since it uses as much as digits as its factorization.

252541789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The square root of 252541789 is about 15891.5634536064. The cubic root of 252541789 is about 632.0882989978.

The spelling of 252541789 in words is "two hundred fifty-two million, five hundred forty-one thousand, seven hundred eighty-nine".