551413213 has 8 divisors (see below), whose sum is σ = 612985856. Its totient is φ = 492577200.

The previous prime is 551413171. The next prime is 551413249. The reversal of 551413213 is 312314155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551413213 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 (551413253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683733 + ... + 684538.

It is an arithmetic number, because the mean of its divisors is an integer number (76623232).

Almost surely, 2^551413213 is an apocalyptic number.

It is an amenable number.

551413213 is a deficient number, since it is larger than the sum of its proper divisors (61572643).

551413213 is a wasteful number, since it uses less digits than its factorization.

551413213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368315.

The product of its digits is 1800, while the sum is 25.

The square root of 551413213 is about 23482.1892718716. The cubic root of 551413213 is about 820.0224131292.

Adding to 551413213 its reverse (312314155), we get a palindrome (863727368).

The spelling of 551413213 in words is "five hundred fifty-one million, four hundred thirteen thousand, two hundred thirteen".