52247761 has 2 divisors, whose sum is σ = 52247762. Its totient is φ = 52247760.

The previous prime is 52247759. The next prime is 52247809. The reversal of 52247761 is 16774225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41357761 + 10890000 = 6431^2 + 3300^2 .

It is a cyclic number.

It is not a de Polignac number, because 52247761 - 2¹ = 52247759 is a prime.

Together with 52247759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52247731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26123880 + 26123881.

It is an arithmetic number, because the mean of its divisors is an integer number (26123881).

Almost surely, 2^52247761 is an apocalyptic number.

It is an amenable number.

52247761 is a deficient number, since it is larger than the sum of its proper divisors (1).

52247761 is an equidigital number, since it uses as much as digits as its factorization.

52247761 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 52247761 is about 7228.2612708728. The cubic root of 52247761 is about 373.8429784001.

The spelling of 52247761 in words is "fifty-two million, two hundred forty-seven thousand, seven hundred sixty-one".