551108801 has 4 divisors (see below), whose sum is σ = 551539632. Its totient is φ = 550677972.

The previous prime is 551108759. The next prime is 551108861. The reversal of 551108801 is 108801155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551108801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551108861) 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, 213491 + ... + 216056.

It is an arithmetic number, because the mean of its divisors is an integer number (137884908).

Almost surely, 2^551108801 is an apocalyptic number.

It is an amenable number.

551108801 is a deficient number, since it is larger than the sum of its proper divisors (430831).

551108801 is a wasteful number, since it uses less digits than its factorization.

551108801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430830.

The product of its (nonzero) digits is 1600, while the sum is 29.

The square root of 551108801 is about 23475.7066134334. The cubic root of 551108801 is about 819.8714854118.

Adding to 551108801 its reverse (108801155), we get a palindrome (659909956).

The spelling of 551108801 in words is "five hundred fifty-one million, one hundred eight thousand, eight hundred one".