55271943 has 16 divisors (see below), whose sum is σ = 82364640. Its totient is φ = 36631872.

The previous prime is 55271933. The next prime is 55271959. The reversal of 55271943 is 34917255.

It is not a de Polignac number, because 55271943 - 2⁹ = 55271431 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 55271898 and 55271907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55271903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246 + ... + 10587.

It is an arithmetic number, because the mean of its divisors is an integer number (5147790).

Almost surely, 2^55271943 is an apocalyptic number.

55271943 is a deficient number, since it is larger than the sum of its proper divisors (27092697).

55271943 is a wasteful number, since it uses less digits than its factorization.

55271943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12015 (or 12009 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55271943 is about 7434.5102730442. The cubic root of 55271943 is about 380.9209954607.

The spelling of 55271943 in words is "fifty-five million, two hundred seventy-one thousand, nine hundred forty-three".