52685641 has 2 divisors, whose sum is σ = 52685642. Its totient is φ = 52685640.

The previous prime is 52685629. The next prime is 52685681. The reversal of 52685641 is 14658625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46785600 + 5900041 = 6840^2 + 2429^2 .

It is a cyclic number.

It is not a de Polignac number, because 52685641 - 2⁵ = 52685609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52685641.

It is not a weakly prime, because it can be changed into another prime (52685681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26342820 + 26342821.

It is an arithmetic number, because the mean of its divisors is an integer number (26342821).

Almost surely, 2^52685641 is an apocalyptic number.

It is an amenable number.

52685641 is a deficient number, since it is larger than the sum of its proper divisors (1).

52685641 is an equidigital number, since it uses as much as digits as its factorization.

52685641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 52685641 is about 7258.4875146273. The cubic root of 52685641 is about 374.8844467672.

The spelling of 52685641 in words is "fifty-two million, six hundred eighty-five thousand, six hundred forty-one".