551132663 has 4 divisors (see below), whose sum is σ = 568911168. Its totient is φ = 533354160.

The previous prime is 551132657. The next prime is 551132719. The reversal of 551132663 is 366231155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366231155 = 5 ⋅73246231.

It is a cyclic number.

It is not a de Polignac number, because 551132663 - 2¹⁸ = 550870519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551132063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8889206 + ... + 8889267.

It is an arithmetic number, because the mean of its divisors is an integer number (142227792).

Almost surely, 2^551132663 is an apocalyptic number.

551132663 is a deficient number, since it is larger than the sum of its proper divisors (17778505).

551132663 is a wasteful number, since it uses less digits than its factorization.

551132663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778504.

The product of its digits is 16200, while the sum is 32.

The square root of 551132663 is about 23476.2148354457. The cubic root of 551132663 is about 819.8833182181.

The spelling of 551132663 in words is "five hundred fifty-one million, one hundred thirty-two thousand, six hundred sixty-three".