55407111 has 4 divisors (see below), whose sum is σ = 73876152. Its totient is φ = 36938072.

The previous prime is 55407109. The next prime is 55407151. The reversal of 55407111 is 11170455.

55407111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55407111 - 2¹ = 55407109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55407151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9234516 + ... + 9234521.

It is an arithmetic number, because the mean of its divisors is an integer number (18469038).

Almost surely, 2^55407111 is an apocalyptic number.

55407111 is a deficient number, since it is larger than the sum of its proper divisors (18469041).

55407111 is a wasteful number, since it uses less digits than its factorization.

55407111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18469040.

The product of its (nonzero) digits is 700, while the sum is 24.

The square root of 55407111 is about 7443.5953006595. The cubic root of 55407111 is about 381.2312578442.

Adding to 55407111 its reverse (11170455), we get a palindrome (66577566).

It can be divided in two parts, 5 and 5407111, that added together give a triangular number (5407116 = T₃₂₈₈).

The spelling of 55407111 in words is "fifty-five million, four hundred seven thousand, one hundred eleven".