551354020544 has 56 divisors (see below), whose sum is σ = 1115027681040. Its totient is φ = 270404885504.

The previous prime is 551354020523. The next prime is 551354020573. The reversal of 551354020544 is 445020453155.

It is a junction number, because it is equal to n+sod(n) for n = 551354020498 and 551354020507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14407067 + ... + 14445285.

It is an arithmetic number, because the mean of its divisors is an integer number (19911208590).

Almost surely, 2^551354020544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551354020544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557513840520).

551354020544 is an abundant number, since it is smaller than the sum of its proper divisors (563673660496).

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

551354020544 is a wasteful number, since it uses less digits than its factorization.

551354020544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42537 (or 42527 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 551354020544 its reverse (445020453155), we get a palindrome (996374473699).

The spelling of 551354020544 in words is "five hundred fifty-one billion, three hundred fifty-four million, twenty thousand, five hundred forty-four".