55516101 has 16 divisors (see below), whose sum is σ = 78542784. Its totient is φ = 34759424.

The previous prime is 55516093. The next prime is 55516103. The reversal of 55516101 is 10161555.

It is not a de Polignac number, because 55516101 - 2³ = 55516093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32470 + ... + 34136.

It is an arithmetic number, because the mean of its divisors is an integer number (4908924).

Almost surely, 2^55516101 is an apocalyptic number.

55516101 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

55516101 is a deficient number, since it is larger than the sum of its proper divisors (23026683).

55516101 is a wasteful number, since it uses less digits than its factorization.

55516101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 55516101 is about 7450.9127628768. The cubic root of 55516101 is about 381.4810644094.

Adding to 55516101 its reverse (10161555), we get a palindrome (65677656).

The spelling of 55516101 in words is "fifty-five million, five hundred sixteen thousand, one hundred one".