501000055501 has 8 divisors (see below), whose sum is σ = 553130401824. Its totient is φ = 449967190320.

The previous prime is 501000055481. The next prime is 501000055537. The reversal of 501000055501 is 105550000105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501000055501 - 2²³ = 500991666893 is a prime.

It is a super-2 number, since 2×501000055501² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501000055571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274369326 + ... + 274371151.

It is an arithmetic number, because the mean of its divisors is an integer number (69141300228).

Almost surely, 2^501000055501 is an apocalyptic number.

It is an amenable number.

501000055501 is a deficient number, since it is larger than the sum of its proper divisors (52130346323).

501000055501 is a wasteful number, since it uses less digits than its factorization.

501000055501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548740571.

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 501000055501 its reverse (105550000105), we get a palindrome (606550055606).

The spelling of 501000055501 in words is "five hundred one billion, fifty-five thousand, five hundred one".