551322331003 has 4 divisors (see below), whose sum is σ = 551332712448. Its totient is φ = 551311949560.

The previous prime is 551322330983. The next prime is 551322331031. The reversal of 551322331003 is 300133223155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551322331003 - 2²¹ = 551320233851 is a prime.

It is a super-3 number, since 3×551322331003³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551322331603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110651 + ... + 5217412.

It is an arithmetic number, because the mean of its divisors is an integer number (137833178112).

Almost surely, 2^551322331003 is an apocalyptic number.

551322331003 is a deficient number, since it is larger than the sum of its proper divisors (10381445).

551322331003 is a wasteful number, since it uses less digits than its factorization.

551322331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10381444.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 551322331003 its reverse (300133223155), we get a palindrome (851455554158).

The spelling of 551322331003 in words is "five hundred fifty-one billion, three hundred twenty-two million, three hundred thirty-one thousand, three".