551809882533 has 128 divisors (see below), whose sum is σ = 939854454784. Its totient is φ = 280215936000.

The previous prime is 551809882489. The next prime is 551809882549. The reversal of 551809882533 is 335288908155.

It is not a de Polignac number, because 551809882533 - 2⁶ = 551809882469 is a prime.

It is a super-2 number, since 2×551809882533² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551809882573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 504857535 + ... + 504858627.

It is an arithmetic number, because the mean of its divisors is an integer number (7342612928).

Almost surely, 2^551809882533 is an apocalyptic number.

It is an amenable number.

551809882533 is a deficient number, since it is larger than the sum of its proper divisors (388044572251).

551809882533 is a wasteful number, since it uses less digits than its factorization.

551809882533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635.

The product of its (nonzero) digits is 10368000, while the sum is 57.

The spelling of 551809882533 in words is "five hundred fifty-one billion, eight hundred nine million, eight hundred eighty-two thousand, five hundred thirty-three".