55325143 has 4 divisors (see below), whose sum is σ = 57730608. Its totient is φ = 52919680.

The previous prime is 55325119. The next prime is 55325147. The reversal of 55325143 is 34152355.

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 55325143 - 2¹³ = 55316951 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 (55325147) 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, 1202698 + ... + 1202743.

It is an arithmetic number, because the mean of its divisors is an integer number (14432652).

Almost surely, 2^55325143 is an apocalyptic number.

55325143 is a deficient number, since it is larger than the sum of its proper divisors (2405465).

55325143 is a wasteful number, since it uses less digits than its factorization.

55325143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405464.

The product of its digits is 9000, while the sum is 28.

The square root of 55325143 is about 7438.0873213481. The cubic root of 55325143 is about 381.0431701576.

Adding to 55325143 its reverse (34152355), we get a palindrome (89477498).

The spelling of 55325143 in words is "fifty-five million, three hundred twenty-five thousand, one hundred forty-three".