555778433 has 24 divisors (see below), whose sum is σ = 688294152. Its totient is φ = 445906944.

The previous prime is 555778427. The next prime is 555778439. The reversal of 555778433 is 334877555.

It is an interprime number because it is at equal distance from previous prime (555778427) and next prime (555778439).

It can be written as a sum of positive squares in 4 ways, for example, as 2917264 + 552861169 = 1708^2 + 23513^2 .

It is not a de Polignac number, because 555778433 - 2¹⁸ = 555516289 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (555778439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159041 + ... + 162497.

It is an arithmetic number, because the mean of its divisors is an integer number (28678923).

Almost surely, 2^555778433 is an apocalyptic number.

It is an amenable number.

555778433 is a deficient number, since it is larger than the sum of its proper divisors (132515719).

555778433 is a wasteful number, since it uses less digits than its factorization.

555778433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681 (or 3674 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 47.

The square root of 555778433 is about 23574.9535100284. The cubic root of 555778433 is about 822.1806093548.

The spelling of 555778433 in words is "five hundred fifty-five million, seven hundred seventy-eight thousand, four hundred thirty-three".