551434045542 has 16 divisors (see below), whose sum is σ = 1102919881392. Its totient is φ = 183802716800.

The previous prime is 551434045529. The next prime is 551434045543. The reversal of 551434045542 is 245540434155.

It is a junction number, because it is equal to n+sod(n) for n = 551434045494 and 551434045503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551434045543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018823 + ... + 2275634.

It is an arithmetic number, because the mean of its divisors is an integer number (68932492587).

Almost surely, 2^551434045542 is an apocalyptic number.

551434045542 is an abundant number, since it is smaller than the sum of its proper divisors (551485835850).

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

551434045542 is a wasteful number, since it uses less digits than its factorization.

551434045542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315863.

The product of its (nonzero) digits is 960000, while the sum is 42.

Adding to 551434045542 its reverse (245540434155), we get a palindrome (796974479697).

The spelling of 551434045542 in words is "five hundred fifty-one billion, four hundred thirty-four million, forty-five thousand, five hundred forty-two".