501005551501 has 32 divisors (see below), whose sum is σ = 620171435520. Its totient is φ = 394124887296.

The previous prime is 501005551469. The next prime is 501005551507. The reversal of 501005551501 is 105155500105.

It is not a de Polignac number, because 501005551501 - 2⁵ = 501005551469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501005551501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501005551507) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11199160 + ... + 11243806.

It is an arithmetic number, because the mean of its divisors is an integer number (19380357360).

Almost surely, 2^501005551501 is an apocalyptic number.

It is an amenable number.

501005551501 is a deficient number, since it is larger than the sum of its proper divisors (119165884019).

501005551501 is a wasteful number, since it uses less digits than its factorization.

501005551501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45373.

The product of its (nonzero) digits is 3125, while the sum is 28.

The spelling of 501005551501 in words is "five hundred one billion, five million, five hundred fifty-one thousand, five hundred one".