50505051505 has 4 divisors (see below), whose sum is σ = 60606061812. Its totient is φ = 40404041200.

The previous prime is 50505051491. The next prime is 50505051547. The reversal of 50505051505 is 50515050505.

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 12731962896 + 37773088609 = 112836^2 + 194353^2 .

It is not a de Polignac number, because 50505051505 - 2⁹ = 50505050993 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, 5050505146 + ... + 5050505155.

It is an arithmetic number, because the mean of its divisors is an integer number (15151515453).

Almost surely, 2^50505051505 is an apocalyptic number.

It is an amenable number.

50505051505 is a deficient number, since it is larger than the sum of its proper divisors (10101010307).

50505051505 is a wasteful number, since it uses less digits than its factorization.

50505051505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101010306.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 50505051505 in words is "fifty billion, five hundred five million, fifty-one thousand, five hundred five".