850552553 has 2 divisors, whose sum is σ = 850552554. Its totient is φ = 850552552.

The previous prime is 850552531. The next prime is 850552567. The reversal of 850552553 is 355255058.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 759388249 + 91164304 = 27557^2 + 9548^2 .

It is a cyclic number.

It is not a de Polignac number, because 850552553 - 2¹⁶ = 850487017 is a prime.

It is not a weakly prime, because it can be changed into another prime (850552583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425276276 + 425276277.

It is an arithmetic number, because the mean of its divisors is an integer number (425276277).

Almost surely, 2^850552553 is an apocalyptic number.

It is an amenable number.

850552553 is a deficient number, since it is larger than the sum of its proper divisors (1).

850552553 is an equidigital number, since it uses as much as digits as its factorization.

850552553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150000, while the sum is 38.

The square root of 850552553 is about 29164.2341404673. The cubic root of 850552553 is about 947.4734538642.

The spelling of 850552553 in words is "eight hundred fifty million, five hundred fifty-two thousand, five hundred fifty-three".