55111670 has 32 divisors (see below), whose sum is σ = 101618496. Its totient is φ = 21513600.

The previous prime is 55111649. The next prime is 55111699. The reversal of 55111670 is 7611155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101600 + ... + 102140.

It is an arithmetic number, because the mean of its divisors is an integer number (3175578).

Almost surely, 2^55111670 is an apocalyptic number.

55111670 is a deficient number, since it is larger than the sum of its proper divisors (46506826).

55111670 is a wasteful number, since it uses less digits than its factorization.

55111670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 55111670 is about 7423.7234592891. The cubic root of 55111670 is about 380.5524512941.

It can be divided in two parts, 551 and 11670, that added together give a palindrome (12221).

The spelling of 55111670 in words is "fifty-five million, one hundred eleven thousand, six hundred seventy".