55111153 has 4 divisors (see below), whose sum is σ = 58011760. Its totient is φ = 52210548.

The previous prime is 55111141. The next prime is 55111159. The reversal of 55111153 is 35111155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55111153 - 2⁹ = 55110641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55111159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450275 + ... + 1450312.

It is an arithmetic number, because the mean of its divisors is an integer number (14502940).

Almost surely, 2^55111153 is an apocalyptic number.

It is an amenable number.

55111153 is a deficient number, since it is larger than the sum of its proper divisors (2900607).

55111153 is a wasteful number, since it uses less digits than its factorization.

55111153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2900606.

The product of its digits is 375, while the sum is 22.

The square root of 55111153 is about 7423.6886384061. The cubic root of 55111153 is about 380.5512613088.

The spelling of 55111153 in words is "fifty-five million, one hundred eleven thousand, one hundred fifty-three".