50655511505 has 4 divisors (see below), whose sum is σ = 60786613812. Its totient is φ = 40524409200.

The previous prime is 50655511477. The next prime is 50655511547. The reversal of 50655511505 is 50511555605.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21178398784 + 29477112721 = 145528^2 + 171689^2 .

It is not a de Polignac number, because 50655511505 - 2⁶ = 50655511441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5065551146 + ... + 5065551155.

It is an arithmetic number, because the mean of its divisors is an integer number (15196653453).

Almost surely, 2^50655511505 is an apocalyptic number.

It is an amenable number.

50655511505 is a deficient number, since it is larger than the sum of its proper divisors (10131102307).

50655511505 is a wasteful number, since it uses less digits than its factorization.

50655511505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10131102306.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 50655511505 in words is "fifty billion, six hundred fifty-five million, five hundred eleven thousand, five hundred five".