55611943 has 16 divisors (see below), whose sum is σ = 58643200. Its totient is φ = 52690176.

The previous prime is 55611929. The next prime is 55612001. The reversal of 55611943 is 34911655.

55611943 = T₄₆₇ + T₄₆₈ + ... + T₇₅₇.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55611943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55611899 and 55611908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55611343) 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 15 ways as a sum of consecutive naturals, for example, 279358 + ... + 279556.

It is an arithmetic number, because the mean of its divisors is an integer number (3665200).

Almost surely, 2^55611943 is an apocalyptic number.

55611943 is a deficient number, since it is larger than the sum of its proper divisors (3031257).

55611943 is a wasteful number, since it uses less digits than its factorization.

55611943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its digits is 16200, while the sum is 34.

The square root of 55611943 is about 7457.3415504454. The cubic root of 55611943 is about 381.7004655545.

The spelling of 55611943 in words is "fifty-five million, six hundred eleven thousand, nine hundred forty-three".