55611005 has 16 divisors (see below), whose sum is σ = 71302080. Its totient is φ = 41513472.

The previous prime is 55611001. The next prime is 55611007. The reversal of 55611005 is 50011655.

It is a cyclic number.

It is not a de Polignac number, because 55611005 - 2² = 55611001 is a prime.

It is a super-2 number, since 2×55611005² = 6185167754220050, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611001) 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, 1997 + ... + 10733.

It is an arithmetic number, because the mean of its divisors is an integer number (4456380).

Almost surely, 2^55611005 is an apocalyptic number.

It is an amenable number.

55611005 is a deficient number, since it is larger than the sum of its proper divisors (15691075).

55611005 is a wasteful number, since it uses less digits than its factorization.

55611005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8828.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 55611005 is about 7457.2786591357. The cubic root of 55611005 is about 381.6983195104.

The spelling of 55611005 in words is "fifty-five million, six hundred eleven thousand, five".