551034091 has 4 divisors (see below), whose sum is σ = 551812000. Its totient is φ = 550256184.

The previous prime is 551034089. The next prime is 551034103. The reversal of 551034091 is 190430155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551034091 - 2¹ = 551034089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551034031) 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, 387891 + ... + 389308.

It is an arithmetic number, because the mean of its divisors is an integer number (137953000).

Almost surely, 2^551034091 is an apocalyptic number.

551034091 is a deficient number, since it is larger than the sum of its proper divisors (777909).

551034091 is an equidigital number, since it uses as much as digits as its factorization.

551034091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777908.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 551034091 is about 23474.1153400932. The cubic root of 551034091 is about 819.8344356396.

It can be divided in two parts, 5510 and 34091, that added together give a square (39601 = 199²).

The spelling of 551034091 in words is "five hundred fifty-one million, thirty-four thousand, ninety-one".