551300243320 has 32 divisors (see below), whose sum is σ = 1305711104400. Its totient is φ = 208913776128.

The previous prime is 551300243297. The next prime is 551300243323. The reversal of 551300243320 is 23342003155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551300243323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362696769 + ... + 362698288.

Almost surely, 2^551300243320 is an apocalyptic number.

It is an amenable number.

551300243320 is an abundant number, since it is smaller than the sum of its proper divisors (754410861080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551300243320 is a wasteful number, since it uses less digits than its factorization.

551300243320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725395087 (or 725395083 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 551300243320 its reverse (23342003155), we get a palindrome (574642246475).

The spelling of 551300243320 in words is "five hundred fifty-one billion, three hundred million, two hundred forty-three thousand, three hundred twenty".