551021234 has 8 divisors (see below), whose sum is σ = 830079900. Its totient is φ = 274327936.

The previous prime is 551021227. The next prime is 551021243. The reversal of 551021234 is 432120155.

It can be written as a sum of positive squares in 2 ways, for example, as 462379009 + 88642225 = 21503^2 + 9415^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590759 + ... + 591690.

Almost surely, 2^551021234 is an apocalyptic number.

551021234 is a deficient number, since it is larger than the sum of its proper divisors (279058666).

551021234 is a wasteful number, since it uses less digits than its factorization.

551021234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182684.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 551021234 is about 23473.8414836601. The cubic root of 551021234 is about 819.8280593291.

Adding to 551021234 its reverse (432120155), we get a palindrome (983141389).

The spelling of 551021234 in words is "five hundred fifty-one million, twenty-one thousand, two hundred thirty-four".