551545235320 has 16 divisors (see below), whose sum is σ = 1240976779560. Its totient is φ = 220618094112.

The previous prime is 551545235257. The next prime is 551545235393. The reversal of 551545235320 is 23532545155.

It is a super-3 number, since 3×551545235320³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 13788630883 = 551545235320 / (5 + 5 + 1 + 5 + 4 + 5 + 2 + 3 + 5 + 3 + 2 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6894315402 + ... + 6894315481.

Almost surely, 2^551545235320 is an apocalyptic number.

It is an amenable number.

551545235320 is an abundant number, since it is smaller than the sum of its proper divisors (689431544240).

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

551545235320 is a wasteful number, since it uses less digits than its factorization.

551545235320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13788630894 (or 13788630890 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 40.

The spelling of 551545235320 in words is "five hundred fifty-one billion, five hundred forty-five million, two hundred thirty-five thousand, three hundred twenty".