55611807 has 16 divisors (see below), whose sum is σ = 75696000. Its totient is φ = 36306144.

The previous prime is 55611797. The next prime is 55611827. The reversal of 55611807 is 70811655.

55611807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55611807 - 2⁴ = 55611791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66669 + ... + 67497.

It is an arithmetic number, because the mean of its divisors is an integer number (4731000).

Almost surely, 2^55611807 is an apocalyptic number.

55611807 is a deficient number, since it is larger than the sum of its proper divisors (20084193).

55611807 is a wasteful number, since it uses less digits than its factorization.

55611807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 55611807 is about 7457.3324319089. The cubic root of 55611807 is about 381.7001544025.

The spelling of 55611807 in words is "fifty-five million, six hundred eleven thousand, eight hundred seven".