551350305243520 has 64 divisors (see below), whose sum is σ = 1387444024738800. Its totient is φ = 208932747245568.

The previous prime is 551350305243487. The next prime is 551350305243541. The reversal of 551350305243520 is 25342503053155.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 22670641839 + ... + 22670666158.

Almost surely, 2^{551350305243520} is an apocalyptic number.

It is an amenable number.

551350305243520 is an abundant number, since it is smaller than the sum of its proper divisors (836093719495280).

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

551350305243520 is a wasteful number, since it uses less digits than its factorization.

551350305243520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45341308035 (or 45341308023 counting only the distinct ones).

The product of its (nonzero) digits is 1350000, while the sum is 43.

Adding to 551350305243520 its reverse (25342503053155), we get a palindrome (576692808296675).

The spelling of 551350305243520 in words is "five hundred fifty-one trillion, three hundred fifty billion, three hundred five million, two hundred forty-three thousand, five hundred twenty".