551342434 has 4 divisors (see below), whose sum is σ = 827013654. Its totient is φ = 275671216.

The previous prime is 551342381. The next prime is 551342443. The reversal of 551342434 is 434243155.

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

It can be written as a sum of positive squares in only one way, i.e., 422179209 + 129163225 = 20547^2 + 11365^2 .

It is a junction number, because it is equal to n+sod(n) for n = 551342396 and 551342405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137835607 + ... + 137835610.

Almost surely, 2^551342434 is an apocalyptic number.

551342434 is a deficient number, since it is larger than the sum of its proper divisors (275671220).

551342434 is a wasteful number, since it uses less digits than its factorization.

551342434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275671219.

The product of its digits is 28800, while the sum is 31.

The square root of 551342434 is about 23480.6821451167. The cubic root of 551342434 is about 819.9873258005.

Adding to 551342434 its reverse (434243155), we get a palindrome (985585589).

The spelling of 551342434 in words is "five hundred fifty-one million, three hundred forty-two thousand, four hundred thirty-four".