551255135141042 has 16 divisors (see below), whose sum is σ = 891632182644000. Its totient is φ = 254752052182560.

The previous prime is 551255135140907. The next prime is 551255135141047. The reversal of 551255135141042 is 240141531552155.

It is a junction number, because it is equal to n+sod(n) for n = 551255135140984 and 551255135141002.

It is not an unprimeable number, because it can be changed into a prime (551255135141047) 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, 176911145792 + ... + 176911148907.

It is an arithmetic number, because the mean of its divisors is an integer number (55727011415250).

Almost surely, 2^{551255135141042} is an apocalyptic number.

551255135141042 is a deficient number, since it is larger than the sum of its proper divisors (340377047502958).

551255135141042 is a wasteful number, since it uses less digits than its factorization.

551255135141042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353822294761.

The product of its (nonzero) digits is 600000, while the sum is 44.

Adding to 551255135141042 its reverse (240141531552155), we get a palindrome (791396666693197).

The spelling of 551255135141042 in words is "five hundred fifty-one trillion, two hundred fifty-five billion, one hundred thirty-five million, one hundred forty-one thousand, forty-two".