501110010505 has 16 divisors (see below), whose sum is σ = 658204528464. Its totient is φ = 363984065280.

The previous prime is 501110010461. The next prime is 501110010521. The reversal of 501110010505 is 505010011105.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 315565309504 + 185544701001 = 561752^2 + 430749^2 .

It is not a de Polignac number, because 501110010505 - 2³¹ = 498962526857 is a prime.

It is a super-2 number, since 2×501110010505² (a number of 24 digits) contains 22 as substring.

It is a Duffinian 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, 63187714 + ... + 63195643.

It is an arithmetic number, because the mean of its divisors is an integer number (41137783029).

Almost surely, 2^501110010505 is an apocalyptic number.

It is an amenable number.

501110010505 is a deficient number, since it is larger than the sum of its proper divisors (157094517959).

501110010505 is a wasteful number, since it uses less digits than its factorization.

501110010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126383436.

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 501110010505 in words is "five hundred one billion, one hundred ten million, ten thousand, five hundred five".