4252545749 has 2 divisors, whose sum is σ = 4252545750. Its totient is φ = 4252545748.

The previous prime is 4252545721. The next prime is 4252545763. The reversal of 4252545749 is 9475452524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4251952849 + 592900 = 65207^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 4252545749 - 2¹⁶ = 4252480213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4252545709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2126272874 + 2126272875.

It is an arithmetic number, because the mean of its divisors is an integer number (2126272875).

Almost surely, 2^4252545749 is an apocalyptic number.

It is an amenable number.

4252545749 is a deficient number, since it is larger than the sum of its proper divisors (1).

4252545749 is an equidigital number, since it uses as much as digits as its factorization.

4252545749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016000, while the sum is 47.

The square root of 4252545749 is about 65211.5461325677. The cubic root of 4252545749 is about 1620.1292572016.

The spelling of 4252545749 in words is "four billion, two hundred fifty-two million, five hundred forty-five thousand, seven hundred forty-nine".