550252507778 has 8 divisors (see below), whose sum is σ = 836685320268. Its totient is φ = 271357401024.

The previous prime is 550252507691. The next prime is 550252507781. The reversal of 550252507778 is 877705252055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 519729971929 + 30522535849 = 720923^2 + 174707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1884426251 + ... + 1884426542.

Almost surely, 2^550252507778 is an apocalyptic number.

550252507778 is a deficient number, since it is larger than the sum of its proper divisors (286432812490).

550252507778 is a wasteful number, since it uses less digits than its factorization.

550252507778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768852868.

The product of its (nonzero) digits is 6860000, while the sum is 53.

The spelling of 550252507778 in words is "five hundred fifty billion, two hundred fifty-two million, five hundred seven thousand, seven hundred seventy-eight".