55505500501 has 8 divisors (see below), whose sum is σ = 61231809600. Its totient is φ = 49892583840.

The previous prime is 55505500459. The next prime is 55505500529. The reversal of 55505500501 is 10500550555.

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

It is not a de Polignac number, because 55505500501 - 2¹³ = 55505492309 is a prime.

It is a super-2 number, since 2×55505500501² (a number of 22 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 (55505500571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28347081 + ... + 28349038.

It is an arithmetic number, because the mean of its divisors is an integer number (7653976200).

Almost surely, 2^55505500501 is an apocalyptic number.

It is an amenable number.

55505500501 is a deficient number, since it is larger than the sum of its proper divisors (5726309099).

55505500501 is a wasteful number, since it uses less digits than its factorization.

55505500501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56696219.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 55505500501 in words is "fifty-five billion, five hundred five million, five hundred thousand, five hundred one".