55152143 has 4 divisors (see below), whose sum is σ = 55771920. Its totient is φ = 54532368.

The previous prime is 55152133. The next prime is 55152169. The reversal of 55152143 is 34125155.

55152143 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 55152143 - 2¹⁸ = 54889999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55152133) 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, 309755 + ... + 309932.

It is an arithmetic number, because the mean of its divisors is an integer number (13942980).

Almost surely, 2^55152143 is an apocalyptic number.

55152143 is a deficient number, since it is larger than the sum of its proper divisors (619777).

55152143 is an equidigital number, since it uses as much as digits as its factorization.

55152143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619776.

The product of its digits is 3000, while the sum is 26.

The square root of 55152143 is about 7426.4488822047. The cubic root of 55152143 is about 380.6455854135.

Adding to 55152143 its reverse (34125155), we get a palindrome (89277298).

The spelling of 55152143 in words is "fifty-five million, one hundred fifty-two thousand, one hundred forty-three".