52537861 has 2 divisors, whose sum is σ = 52537862. Its totient is φ = 52537860.

The previous prime is 52537843. The next prime is 52537889. The reversal of 52537861 is 16873525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52056225 + 481636 = 7215^2 + 694^2 .

It is a cyclic number.

It is not a de Polignac number, because 52537861 - 2⁵ = 52537829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52537861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52537801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26268930 + 26268931.

It is an arithmetic number, because the mean of its divisors is an integer number (26268931).

Almost surely, 2^52537861 is an apocalyptic number.

It is an amenable number.

52537861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52537861 is an equidigital number, since it uses as much as digits as its factorization.

52537861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 52537861 is about 7248.3005594415. The cubic root of 52537861 is about 374.5336092232.

The spelling of 52537861 in words is "fifty-two million, five hundred thirty-seven thousand, eight hundred sixty-one".