551312465 has 16 divisors (see below), whose sum is σ = 764173440. Its totient is φ = 377368320.

The previous prime is 551312441. The next prime is 551312483. The reversal of 551312465 is 564213155.

It is not a de Polignac number, because 551312465 - 2¹⁰ = 551311441 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 293885 + ... + 295754.

It is an arithmetic number, because the mean of its divisors is an integer number (47760840).

Almost surely, 2^551312465 is an apocalyptic number.

551312465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

551312465 is a deficient number, since it is larger than the sum of its proper divisors (212860975).

551312465 is a wasteful number, since it uses less digits than its factorization.

551312465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589672.

The product of its digits is 18000, while the sum is 32.

The square root of 551312465 is about 23480.0439735534. The cubic root of 551312465 is about 819.9724683400.

The spelling of 551312465 in words is "five hundred fifty-one million, three hundred twelve thousand, four hundred sixty-five".