55100565 has 48 divisors (see below), whose sum is σ = 103783680. Its totient is φ = 26881920.

The previous prime is 55100561. The next prime is 55100567. The reversal of 55100565 is 56500155.

It is not a de Polignac number, because 55100565 - 2² = 55100561 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55100561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76276 + ... + 76994.

It is an arithmetic number, because the mean of its divisors is an integer number (2162160).

Almost surely, 2^55100565 is an apocalyptic number.

It is an amenable number.

55100565 is a deficient number, since it is larger than the sum of its proper divisors (48683115).

55100565 is a wasteful number, since it uses less digits than its factorization.

55100565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 55100565 is about 7422.9754815707. The cubic root of 55100565 is about 380.5268891409.

The spelling of 55100565 in words is "fifty-five million, one hundred thousand, five hundred sixty-five".