551140424 has 32 divisors (see below), whose sum is σ = 1057190400. Its totient is φ = 269243520.

The previous prime is 551140367. The next prime is 551140427. The reversal of 551140424 is 424041155.

551140424 = 277² + 278² + ... + 1187².

It is a junction number, because it is equal to n+sod(n) for n = 551140393 and 551140402.

It is not an unprimeable number, because it can be changed into a prime (551140427) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 341732 + ... + 343340.

It is an arithmetic number, because the mean of its divisors is an integer number (33037200).

Almost surely, 2^551140424 is an apocalyptic number.

It is an amenable number.

551140424 is a deficient number, since it is larger than the sum of its proper divisors (506049976).

551140424 is a wasteful number, since it uses less digits than its factorization.

551140424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 551140424 is about 23476.3801298241. The cubic root of 551140424 is about 819.8871667075.

Adding to 551140424 its reverse (424041155), we get a palindrome (975181579).

The spelling of 551140424 in words is "five hundred fifty-one million, one hundred forty thousand, four hundred twenty-four".