505050005501 has 8 divisors (see below), whose sum is σ = 539664875640. Its totient is φ = 470980251648.

The previous prime is 505050005483. The next prime is 505050005533. The reversal of 505050005501 is 105500050505.

It can be written as a sum of positive squares in 4 ways, for example, as 142658045401 + 362391960100 = 377701^2 + 601990^2 .

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 505050005501 - 2⁶ = 505050005437 is a prime.

It is a super-2 number, since 2×505050005501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505050005591) 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, 136277156 + ... + 136280861.

It is an arithmetic number, because the mean of its divisors is an integer number (67458109455).

Almost surely, 2^505050005501 is an apocalyptic number.

It is an amenable number.

505050005501 is a deficient number, since it is larger than the sum of its proper divisors (34614870139).

505050005501 is a wasteful number, since it uses less digits than its factorization.

505050005501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272558143.

The product of its (nonzero) digits is 3125, while the sum is 26.

The spelling of 505050005501 in words is "five hundred five billion, fifty million, five thousand, five hundred one".