505030278055 has 32 divisors (see below), whose sum is σ = 656333280000. Its totient is φ = 371602513920.

The previous prime is 505030278047. The next prime is 505030278061. The reversal of 505030278055 is 550872030505.

It is a happy number.

It is not a de Polignac number, because 505030278055 - 2³ = 505030278047 is a prime.

It is a super-2 number, since 2×505030278055² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 505030277999 and 505030278017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2545071 + ... + 2736319.

It is an arithmetic number, because the mean of its divisors is an integer number (20510415000).

Almost surely, 2^505030278055 is an apocalyptic number.

505030278055 is a deficient number, since it is larger than the sum of its proper divisors (151303001945).

505030278055 is a wasteful number, since it uses less digits than its factorization.

505030278055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191979.

The product of its (nonzero) digits is 210000, while the sum is 40.

The spelling of 505030278055 in words is "five hundred five billion, thirty million, two hundred seventy-eight thousand, fifty-five".