55200016501 has 12 divisors (see below), whose sum is σ = 64217119980. Its totient is φ = 47310721920.

The previous prime is 55200016493. The next prime is 55200016561. The reversal of 55200016501 is 10561000255.

It can be written as a sum of positive squares in 2 ways, for example, as 4819969476 + 50380047025 = 69426^2 + 224455^2 .

It is not a de Polignac number, because 55200016501 - 2³ = 55200016493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55200016561) 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 11 ways as a sum of consecutive naturals, for example, 767671 + ... + 836491.

It is an arithmetic number, because the mean of its divisors is an integer number (5351426665).

Almost surely, 2^55200016501 is an apocalyptic number.

It is an amenable number.

55200016501 is a deficient number, since it is larger than the sum of its proper divisors (9017103479).

55200016501 is a wasteful number, since it uses less digits than its factorization.

55200016501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85204 (or 85197 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 55200016501 its reverse (10561000255), we get a palindrome (65761016756).

The spelling of 55200016501 in words is "fifty-five billion, two hundred million, sixteen thousand, five hundred one".