42752761 has 2 divisors, whose sum is σ = 42752762. Its totient is φ = 42752760.

The previous prime is 42752741. The next prime is 42752779. The reversal of 42752761 is 16725724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41473600 + 1279161 = 6440^2 + 1131^2 .

It is a cyclic number.

It is not a de Polignac number, because 42752761 - 2⁹ = 42752249 is a prime.

It is not a weakly prime, because it can be changed into another prime (42752701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21376380 + 21376381.

It is an arithmetic number, because the mean of its divisors is an integer number (21376381).

Almost surely, 2^42752761 is an apocalyptic number.

It is an amenable number.

42752761 is a deficient number, since it is larger than the sum of its proper divisors (1).

42752761 is an equidigital number, since it uses as much as digits as its factorization.

42752761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23520, while the sum is 34.

The square root of 42752761 is about 6538.5595508491. The cubic root of 42752761 is about 349.6670602601.

The spelling of 42752761 in words is "forty-two million, seven hundred fifty-two thousand, seven hundred sixty-one".