52856185451 has 2 divisors, whose sum is σ = 52856185452. Its totient is φ = 52856185450.

The previous prime is 52856185441. The next prime is 52856185517. The reversal of 52856185451 is 15458165825.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52856185451 - 2¹⁰ = 52856184427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52856185451.

It is not a weakly prime, because it can be changed into another prime (52856185411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26428092725 + 26428092726.

It is an arithmetic number, because the mean of its divisors is an integer number (26428092726).

Almost surely, 2^52856185451 is an apocalyptic number.

52856185451 is a deficient number, since it is larger than the sum of its proper divisors (1).

52856185451 is an equidigital number, since it uses as much as digits as its factorization.

52856185451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920000, while the sum is 50.

The spelling of 52856185451 in words is "fifty-two billion, eight hundred fifty-six million, one hundred eighty-five thousand, four hundred fifty-one".