52040749 has 2 divisors, whose sum is σ = 52040750. Its totient is φ = 52040748.

The previous prime is 52040741. The next prime is 52040777. The reversal of 52040749 is 94704025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47858724 + 4182025 = 6918^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 52040749 - 2³ = 52040741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52040749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52040741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26020374 + 26020375.

It is an arithmetic number, because the mean of its divisors is an integer number (26020375).

Almost surely, 2^52040749 is an apocalyptic number.

It is an amenable number.

52040749 is a deficient number, since it is larger than the sum of its proper divisors (1).

52040749 is an equidigital number, since it uses as much as digits as its factorization.

52040749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 52040749 is about 7213.9274324046. The cubic root of 52040749 is about 373.3485877235.

The spelling of 52040749 in words is "fifty-two million, forty thousand, seven hundred forty-nine".