551115434 has 16 divisors (see below), whose sum is σ = 847584672. Its totient is φ = 268612848.

The previous prime is 551115413. The next prime is 551115451. The reversal of 551115434 is 434511155.

It is a junction number, because it is equal to n+sod(n) for n = 551115397 and 551115406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38852 + ... + 51104.

It is an arithmetic number, because the mean of its divisors is an integer number (52974042).

Almost surely, 2^551115434 is an apocalyptic number.

551115434 is a deficient number, since it is larger than the sum of its proper divisors (296469238).

551115434 is a wasteful number, since it uses less digits than its factorization.

551115434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12821.

The product of its digits is 6000, while the sum is 29.

The square root of 551115434 is about 23475.8478867111. The cubic root of 551115434 is about 819.8747746509.

Adding to 551115434 its reverse (434511155), we get a palindrome (985626589).

The spelling of 551115434 in words is "five hundred fifty-one million, one hundred fifteen thousand, four hundred thirty-four".