50220561656 has 32 divisors (see below), whose sum is σ = 95758528800. Its totient is φ = 24685395840.

The previous prime is 50220561631. The next prime is 50220561701. The reversal of 50220561656 is 65616502205.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 916685 + ... + 969923.

It is an arithmetic number, because the mean of its divisors is an integer number (2992454025).

Almost surely, 2^50220561656 is an apocalyptic number.

It is an amenable number.

50220561656 is a deficient number, since it is larger than the sum of its proper divisors (45537967144).

50220561656 is a wasteful number, since it uses less digits than its factorization.

50220561656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55239 (or 55235 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 50220561656 in words is "fifty billion, two hundred twenty million, five hundred sixty-one thousand, six hundred fifty-six".