52242481 has 2 divisors, whose sum is σ = 52242482. Its totient is φ = 52242480.

The previous prime is 52242473. The next prime is 52242539. The reversal of 52242481 is 18424225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43296400 + 8946081 = 6580^2 + 2991^2 .

It is a cyclic number.

It is not a de Polignac number, because 52242481 - 2³ = 52242473 is a prime.

It is a super-2 number, since 2×52242481² = 5458553642070722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52242401) 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, 26121240 + 26121241.

It is an arithmetic number, because the mean of its divisors is an integer number (26121241).

Almost surely, 2^52242481 is an apocalyptic number.

It is an amenable number.

52242481 is a deficient number, since it is larger than the sum of its proper divisors (1).

52242481 is an equidigital number, since it uses as much as digits as its factorization.

52242481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 28.

The square root of 52242481 is about 7227.8960285826. The cubic root of 52242481 is about 373.8303848307.

The spelling of 52242481 in words is "fifty-two million, two hundred forty-two thousand, four hundred eighty-one".