550405024140342 has 64 divisors (see below), whose sum is σ = 1265035778592768. Its totient is φ = 156387706992000.

The previous prime is 550405024140299. The next prime is 550405024140407. The reversal of 550405024140342 is 243041420504055.

It is a super-2 number, since 2×550405024140342² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550405024140342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 639589992 + ... + 640449972.

It is an arithmetic number, because the mean of its divisors is an integer number (19766184040512).

Almost surely, 2^{550405024140342} is an apocalyptic number.

550405024140342 is an abundant number, since it is smaller than the sum of its proper divisors (714630754452426).

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

550405024140342 is a wasteful number, since it uses less digits than its factorization.

550405024140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944365.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 550405024140342 its reverse (243041420504055), we get a palindrome (793446444644397).

The spelling of 550405024140342 in words is "five hundred fifty trillion, four hundred five billion, twenty-four million, one hundred forty thousand, three hundred forty-two".