55565111 has 8 divisors (see below), whose sum is σ = 63960960. Its totient is φ = 47283768.

The previous prime is 55565099. The next prime is 55565117. The reversal of 55565111 is 11156555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55565111 - 2¹⁸ = 55302967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55565117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27581 + ... + 29526.

It is an arithmetic number, because the mean of its divisors is an integer number (7995120).

Almost surely, 2^55565111 is an apocalyptic number.

55565111 is a deficient number, since it is larger than the sum of its proper divisors (8395849).

55565111 is a wasteful number, since it uses less digits than its factorization.

55565111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57253.

The product of its digits is 3750, while the sum is 29.

The square root of 55565111 is about 7454.2008961390. The cubic root of 55565111 is about 381.5932894370.

The spelling of 55565111 in words is "fifty-five million, five hundred sixty-five thousand, one hundred eleven".