501055551007 has 12 divisors (see below), whose sum is σ = 550765076400. Its totient is φ = 455490104960.

The previous prime is 501055550971. The next prime is 501055551019. The reversal of 501055551007 is 700155550105.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-501055551007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501055551107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5545263 + ... + 5634895.

It is an arithmetic number, because the mean of its divisors is an integer number (45897089700).

Almost surely, 2^501055551007 is an apocalyptic number.

501055551007 is a deficient number, since it is larger than the sum of its proper divisors (49709525393).

501055551007 is a wasteful number, since it uses less digits than its factorization.

501055551007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135854 (or 135843 counting only the distinct ones).

The product of its (nonzero) digits is 21875, while the sum is 34.

The spelling of 501055551007 in words is "five hundred one billion, fifty-five million, five hundred fifty-one thousand, seven".