551133379 has 4 divisors (see below), whose sum is σ = 561532176. Its totient is φ = 540734584.

The previous prime is 551133377. The next prime is 551133403. The reversal of 551133379 is 973331155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973331155 = 5 ⋅194666231.

It is a cyclic number.

It is not a de Polignac number, because 551133379 - 2¹ = 551133377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551133377) 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, 5199319 + ... + 5199424.

It is an arithmetic number, because the mean of its divisors is an integer number (140383044).

Almost surely, 2^551133379 is an apocalyptic number.

551133379 is a deficient number, since it is larger than the sum of its proper divisors (10398797).

551133379 is a wasteful number, since it uses less digits than its factorization.

551133379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10398796.

The product of its digits is 42525, while the sum is 37.

The square root of 551133379 is about 23476.2300849178. The cubic root of 551133379 is about 819.8836732664.

The spelling of 551133379 in words is "five hundred fifty-one million, one hundred thirty-three thousand, three hundred seventy-nine".