803401823550 has 24 divisors (see below), whose sum is σ = 1992436522776. Its totient is φ = 214240486240.

The previous prime is 803401823513. The next prime is 803401823551. The reversal of 803401823550 is 55328104308.

It is a junction number, because it is equal to n+sod(n) for n = 803401823499 and 803401823508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803401823551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2678005929 + ... + 2678006228.

It is an arithmetic number, because the mean of its divisors is an integer number (83018188449).

Almost surely, 2^803401823550 is an apocalyptic number.

803401823550 is an abundant number, since it is smaller than the sum of its proper divisors (1189034699226).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

803401823550 is a wasteful number, since it uses less digits than its factorization.

803401823550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356012172 (or 5356012167 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 803401823550 its reverse (55328104308), we get a palindrome (858729927858).

The spelling of 803401823550 in words is "eight hundred three billion, four hundred one million, eight hundred twenty-three thousand, five hundred fifty".