551243455134 has 32 divisors (see below), whose sum is σ = 1106224853760. Its totient is φ = 183125035200.

The previous prime is 551243455123. The next prime is 551243455201. The reversal of 551243455134 is 431554342155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12235269 + ... + 12280239.

It is an arithmetic number, because the mean of its divisors is an integer number (34569526680).

Almost surely, 2^551243455134 is an apocalyptic number.

551243455134 is an abundant number, since it is smaller than the sum of its proper divisors (554981398626).

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

551243455134 is a wasteful number, since it uses less digits than its factorization.

551243455134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51856.

The product of its digits is 720000, while the sum is 42.

Adding to 551243455134 its reverse (431554342155), we get a palindrome (982797797289).

The spelling of 551243455134 in words is "five hundred fifty-one billion, two hundred forty-three million, four hundred fifty-five thousand, one hundred thirty-four".