551450134232420 has 96 divisors (see below), whose sum is σ = 1173395930757120. Its totient is φ = 217659449180160.

The previous prime is 551450134232383. The next prime is 551450134232441. The reversal of 551450134232420 is 24232431054155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35667163490 + ... + 35667178950.

It is an arithmetic number, because the mean of its divisors is an integer number (12222874278720).

Almost surely, 2^{551450134232420} is an apocalyptic number.

It is an amenable number.

551450134232420 is an abundant number, since it is smaller than the sum of its proper divisors (621945796524700).

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

551450134232420 is a wasteful number, since it uses less digits than its factorization.

551450134232420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27405 (or 27403 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 551450134232420 its reverse (24232431054155), we get a palindrome (575682565286575).

The spelling of 551450134232420 in words is "five hundred fifty-one trillion, four hundred fifty billion, one hundred thirty-four million, two hundred thirty-two thousand, four hundred twenty".