50720801505 has 16 divisors (see below), whose sum is σ = 88530853824. Its totient is φ = 24591903680.

The previous prime is 50720801449. The next prime is 50720801531. The reversal of 50720801505 is 50510802705.

It is a happy number.

It is not a de Polignac number, because 50720801505 - 2⁶ = 50720801441 is a prime.

It is a super-2 number, since 2×50720801505² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153699234 + ... + 153699563.

It is an arithmetic number, because the mean of its divisors is an integer number (5533178364).

Almost surely, 2^50720801505 is an apocalyptic number.

50720801505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50720801505 is a deficient number, since it is larger than the sum of its proper divisors (37810052319).

50720801505 is a wasteful number, since it uses less digits than its factorization.

50720801505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307398816.

The product of its (nonzero) digits is 14000, while the sum is 33.

The spelling of 50720801505 in words is "fifty billion, seven hundred twenty million, eight hundred one thousand, five hundred five".