50278945636 has 24 divisors (see below), whose sum is σ = 88210001880. Its totient is φ = 25076170752.

The previous prime is 50278945589. The next prime is 50278945667. The reversal of 50278945636 is 63654987205.

It can be written as a sum of positive squares in 4 ways, for example, as 3252420900 + 47026524736 = 57030^2 + 216856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626596 + ... + 2645668.

It is an arithmetic number, because the mean of its divisors is an integer number (3675416745).

Almost surely, 2^50278945636 is an apocalyptic number.

It is an amenable number.

50278945636 is a deficient number, since it is larger than the sum of its proper divisors (37931056244).

50278945636 is a wasteful number, since it uses less digits than its factorization.

50278945636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20703 (or 20701 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 50278945636 in words is "fifty billion, two hundred seventy-eight million, nine hundred forty-five thousand, six hundred thirty-six".