55243771 has 8 divisors (see below), whose sum is σ = 60401664. Its totient is φ = 50108520.

The previous prime is 55243763. The next prime is 55243781. The reversal of 55243771 is 17734255.

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

It is not a de Polignac number, because 55243771 - 2³ = 55243763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55243781) 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, 331 + ... + 10516.

It is an arithmetic number, because the mean of its divisors is an integer number (7550208).

Almost surely, 2^55243771 is an apocalyptic number.

55243771 is a deficient number, since it is larger than the sum of its proper divisors (5157893).

55243771 is a wasteful number, since it uses less digits than its factorization.

55243771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11321.

The product of its digits is 29400, while the sum is 34.

The square root of 55243771 is about 7432.6153539653. The cubic root of 55243771 is about 380.8562662361.

The spelling of 55243771 in words is "fifty-five million, two hundred forty-three thousand, seven hundred seventy-one".