55611655 has 16 divisors (see below), whose sum is σ = 73728000. Its totient is φ = 39929760.

The previous prime is 55611653. The next prime is 55611659.

55611655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55611655 - 2¹ = 55611653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55611655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611653) 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, 2055 + ... + 10744.

It is an arithmetic number, because the mean of its divisors is an integer number (4608000).

Almost surely, 2^55611655 is an apocalyptic number.

55611655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55611655 is a deficient number, since it is larger than the sum of its proper divisors (18116345).

55611655 is a wasteful number, since it uses less digits than its factorization.

55611655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894.

The product of its digits is 22500, while the sum is 34.

The square root of 55611655 is about 7457.3222405901. The cubic root of 55611655 is about 381.6998066438.

The spelling of 55611655 in words is "fifty-five million, six hundred eleven thousand, six hundred fifty-five".