551312650 has 96 divisors (see below), whose sum is σ = 1215422208. Its totient is φ = 182131200.

The previous prime is 551312633. The next prime is 551312653. The reversal of 551312650 is 56213155.

It is not an unprimeable number, because it can be changed into a prime (551312653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1477864 + ... + 1478236.

It is an arithmetic number, because the mean of its divisors is an integer number (12660648).

Almost surely, 2^551312650 is an apocalyptic number.

551312650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551312650 is an abundant number, since it is smaller than the sum of its proper divisors (664109558).

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

551312650 is a wasteful number, since it uses less digits than its factorization.

551312650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 551312650 is about 23480.0479130687. The cubic root of 551312650 is about 819.9725600574.

The spelling of 551312650 in words is "five hundred fifty-one million, three hundred twelve thousand, six hundred fifty".