55254143 has 8 divisors (see below), whose sum is σ = 64339488. Its totient is φ = 46466784.

The previous prime is 55254139. The next prime is 55254151. The reversal of 55254143 is 34145255.

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

It is not a de Polignac number, because 55254143 - 2² = 55254139 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 (55254103) 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, 74096 + ... + 74837.

It is an arithmetic number, because the mean of its divisors is an integer number (8042436).

Almost surely, 2^55254143 is an apocalyptic number.

55254143 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

55254143 is a deficient number, since it is larger than the sum of its proper divisors (9085345).

55254143 is a wasteful number, since it uses less digits than its factorization.

55254143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148993.

The product of its digits is 12000, while the sum is 29.

The square root of 55254143 is about 7433.3130567735. The cubic root of 55254143 is about 380.8800999578.

Adding to 55254143 its reverse (34145255), we get a palindrome (89399398).

The spelling of 55254143 in words is "fifty-five million, two hundred fifty-four thousand, one hundred forty-three".