55454143 has 4 divisors (see below), whose sum is σ = 55600840. Its totient is φ = 55307448.

The previous prime is 55454131. The next prime is 55454149. The reversal of 55454143 is 34145455.

It is a happy number.

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 55454143 - 2¹⁷ = 55323071 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 (55454149) 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, 72780 + ... + 73537.

It is an arithmetic number, because the mean of its divisors is an integer number (13900210).

Almost surely, 2^55454143 is an apocalyptic number.

55454143 is a deficient number, since it is larger than the sum of its proper divisors (146697).

55454143 is a wasteful number, since it uses less digits than its factorization.

55454143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146696.

The product of its digits is 24000, while the sum is 31.

The square root of 55454143 is about 7446.7538565472. The cubic root of 55454143 is about 381.3390959737.

Adding to 55454143 its reverse (34145455), we get a palindrome (89599598).

The spelling of 55454143 in words is "fifty-five million, four hundred fifty-four thousand, one hundred forty-three".