55512833 has 2 divisors, whose sum is σ = 55512834. Its totient is φ = 55512832.

The previous prime is 55512829. The next prime is 55512883. The reversal of 55512833 is 33821555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53684929 + 1827904 = 7327^2 + 1352^2 .

It is a cyclic number.

It is not a de Polignac number, because 55512833 - 2² = 55512829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55512833.

It is not a weakly prime, because it can be changed into another prime (55512883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27756416 + 27756417.

It is an arithmetic number, because the mean of its divisors is an integer number (27756417).

Almost surely, 2^55512833 is an apocalyptic number.

It is an amenable number.

55512833 is a deficient number, since it is larger than the sum of its proper divisors (1).

55512833 is an equidigital number, since it uses as much as digits as its factorization.

55512833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 32.

The square root of 55512833 is about 7450.6934576588. The cubic root of 55512833 is about 381.4735788659.

The spelling of 55512833 in words is "fifty-five million, five hundred twelve thousand, eight hundred thirty-three".