52553861 has 2 divisors, whose sum is σ = 52553862. Its totient is φ = 52553860.

The previous prime is 52553843. The next prime is 52553903. The reversal of 52553861 is 16835525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 12737761 = 6310^2 + 3569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52553861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52553161) 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, 26276930 + 26276931.

It is an arithmetic number, because the mean of its divisors is an integer number (26276931).

Almost surely, 2^52553861 is an apocalyptic number.

It is an amenable number.

52553861 is a deficient number, since it is larger than the sum of its proper divisors (1).

52553861 is an equidigital number, since it uses as much as digits as its factorization.

52553861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 35.

The square root of 52553861 is about 7249.4041824139. The cubic root of 52553861 is about 374.5716258041.

The spelling of 52553861 in words is "fifty-two million, five hundred fifty-three thousand, eight hundred sixty-one".