50215220566655 has 16 divisors (see below), whose sum is σ = 60477602868768. Its totient is φ = 40026100752000.

The previous prime is 50215220566649. The next prime is 50215220566663. The reversal of 50215220566655 is 55666502251205.

It is not a de Polignac number, because 50215220566655 - 2²² = 50215216372351 is a prime.

It is a super-3 number, since 3×50215220566655³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian 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, 6676136 + ... + 12041645.

It is an arithmetic number, because the mean of its divisors is an integer number (3779850179298).

Almost surely, 2^{50215220566655} is an apocalyptic number.

50215220566655 is a deficient number, since it is larger than the sum of its proper divisors (10262382302113).

50215220566655 is a wasteful number, since it uses less digits than its factorization.

50215220566655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18719738.

The product of its (nonzero) digits is 5400000, while the sum is 50.

The spelling of 50215220566655 in words is "fifty trillion, two hundred fifteen billion, two hundred twenty million, five hundred sixty-six thousand, six hundred fifty-five".