505050055278 has 32 divisors (see below), whose sum is σ = 1056973725216. Its totient is φ = 160709447808.

The previous prime is 505050055267. The next prime is 505050055343. The reversal of 505050055278 is 872550050505.

It is a Curzon number.

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, 21450501 + ... + 21474032.

It is an arithmetic number, because the mean of its divisors is an integer number (33030428913).

Almost surely, 2^505050055278 is an apocalyptic number.

505050055278 is an abundant number, since it is smaller than the sum of its proper divisors (551923669938).

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

505050055278 is a wasteful number, since it uses less digits than its factorization.

505050055278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42924628.

The product of its (nonzero) digits is 350000, while the sum is 42.

The spelling of 505050055278 in words is "five hundred five billion, fifty million, fifty-five thousand, two hundred seventy-eight".